Troubleshoot Connectivity Issue with SQL Server Express 2005

Article
03/22/2006

Recently, we answered a lot of customer questions about how to make a successful connection to SQL Express 2005 through MSDN forum and our blogs. Here, I collect basic info about it and a brief guide of making local and remote connection to SQL Server Express 2005.

Part I - Quick overview with SQL Server 2005 Express Edition:

https://msdn.microsoft.com/vstudio/express/sql/

https://msdn.microsoft.com/sql/express/

https://www.microsoft.com/sql/editions/express/default.mspx

Part II - SqlExpress Weblog and Forum:

https://blogs.msdn.com/sqlexpress/default.aspx

https://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=385&SiteID=1

Part III - SQL Express Connectivity

From Protocols point of view, I would like to give a brief guide about how to make a successful connection against Express Server from your client application.

First: Make sure the instance is running.

By default, SQL Server Express Edition is installed as a *Named Instance*, namely, it is not default instance called MSSQLSERVER, instead, by running "net start" or open services control manager, you will see a service named "MSSQL$SQLEXPRESS" running after installation. So, the instance name is "SQLExpress".

Secondly: Check Server ERRORLOG

Two ways:

1) By open the properties of the service, you will see the binary location, such as "C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBinnsqlservr.exe", so normally, if you do not change configuration for the log file location, it should be located ...MSSQL.XMSSQLLog. When you open the log file, you should see some keywords such as " Express Edition " and " Server name is '<machinename>SQLEXPRESS' " and " Server named pipe provider is ready to accept connection on [ \.pipeMSSQL$SQLEXPRESSsqlquery ]", etc.

2) Go to SQL Server Configuration Manager, open " SQL Server 2005 Services", choose "properties" for SQLExpress, in the advanced tab, there is a Filed called "Startup Parameter", you will find configured server log file location.

If your server was not started successfully by any reason, it is very helpful to collect info from server logs; also, you can get clear picture of protocols that server is listening on, for eg, if TCP was enabled, you should be able to see which port server is listening on, and if Np was enabled, you can make connection throgh the pipe name.

Thirdly: Make sure SQL Browser is enabld and running.

To enable browser, First, Use net start or go to sql configuration manager(SSCM), check whether sqlbrowser service is running, if not, start it; Secondly,You still need to make sure SqlBrowser is active. Go to SSCM, click properties of sqlbrowser service -> Advanced-> Active “Yes” or “No”, if sqlbrowser is running but is not active, the service would not serve your client with correct pipe name and Tcp port info on which your connection depends.

Fouthly: Configure Express if you want to mak remote connection.

By default, Named Pipe and TCP/IP Protocols were disabled after installation of SQL Express, hence, if you want to make named pipe and tcp connection, you need to follow the below instructions: https://blogs.msdn.com/sqlexpress/archive/2005/05/05/415084.aspx

Finally: Make sure correct connection string in your client application.

There are bunch of connection properties that you can specify for a SQL Connection through different providers, here, I just point to the "Server" field that point to which instance you want to connect.

Remember whenever you make connection to Express, it is a named instance, namely, you need to specify the instance name in the connection string.

Best practice, especially the server part in conection string.

Local Connection:

"Provider=SQLNCLI;Server=<MachineName>SQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI ";

<MachineName> could be ".", "(local)","localhost", "<localhostname>".

Remote Connection:

"Provider=SQLNCLI;Server=<MachineName>SQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI ";

<MachineName> could be "<remotehostname>", "<remoteIPAddress>","<FQDNofremotemachine>".

If you do not want to put intance name in the connection string, you can avoid that by specifying alias or "<machinename>,port", but we do not recommend those, since those are not convienient for you druing troubleshooting.

Summary:

If you encounter any questions about connectivity issue with SQL Express, please bring any exception that you saw for the above steps, and we will help you to solve the problem.

MING LU

SQL Server Protocols

Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights

Comments

Anonymous
March 30, 2006
Thanks for this I shall post and link to here. I was asked a general question which this should answer
Anonymous
April 06, 2006
I have installed Express 2005 on a Win2k computer. I am able to connect to the server with no problem from this machine. When I try to this Server from an XP computer on the same LAN, I get the following error:
"Run-time error '3707': Provider cannot be found. It may not be properly installed."

Do you know what could be wrong?

I am attempting to connect through a connectionstring in a VB6 application. I am using the same connectionstring on both computers.

the connectionstring is as follows:
strConn = "DRIVER={SQL Native Client};SERVER=Reagan-AOPENsqlexpress;" & _
"DATABASE=Northwind;UID=Reagan;PWD=Reagan2006;"
Anonymous
April 07, 2006
SQL Express 2005 installs a new native driver called SQL Native Client, which is what you are using in the connection string. On the WinXP machine you have on the network, from the error message, it appears that it does not have SQL Native Client installed. You can either install the new driver from
http://www.microsoft.com/downloads/details.aspx?familyid=d09c1d60-a13c-4479-9b91-9e8b9d835cdc&displaylang=en
or you can change the "DRIVER" value to "DRIVER={SQL Server}" which will use MDAC.

HTH
Anonymous
April 28, 2006
after reinstalling SQL server express edition, I changed the server name. Now I am getting alot of errors. For example, The connection provider in ASP.NET configuration is not able to connect to the database. should I change the information in machine.config? I am really confused by the new design of vs2005
Anonymous
May 01, 2006
You should not need to change anything in machine.config. Renaming the computer after installing SQL can cause problems, I have seen this in the past with older versions of SQL. I would suggest un-installing and re-installing SQL Server Express Edition again now that the computer is renamed.
Anonymous
June 09, 2006
I'm trying to connect using ASP 3.0 using the native client provider, I get the following error: " Response object, ASP 0104 (0x80070057)
Operation not Allowed"

any ideas?
Anonymous
June 09, 2006
Hi,

If you search the errorstring, you can find helpful website about the problem, it most likely in your client APP.

http://www.codingforums.com/showthread.php?t=54066

Thanks!
Ming.
Anonymous
June 28, 2006
The comment has been removed
Anonymous
June 29, 2006
The comment has been removed
Anonymous
June 29, 2006
Asaspal. Memrano tu es besta. Amigo.
Anonymous
July 18, 2006
最近在烦恼，怎么就不能远程访问SQL2005的呢！怎么搞也搞不明白！参考了下面的两个Blog，终于清晰了。http://blogs.msdn.com/sql_protocols/ar...
Anonymous
August 17, 2006
I have SQL Express SP1, with just Shared Memory protocol enabled. I installed using advanced settings and changing it to install as the Default Instance not the named instance.

I am using MDAC OLEDB, connection string like "Provider=SQLOLEDB..."

I can connect using "(local)", but I cannot connect as <machinename>. When I try the latter I just get an error of "Timeout expired"

On your blog earlier you said you need to use <machinename> if Shared Memory is the only enabled protocol.

Just a little confused about this, and would appreciate a little info.

Thanks!
Anonymous
August 19, 2006
The comment has been removed
Anonymous
September 11, 2006
The comment has been removed
Anonymous
September 22, 2006
Hi Ming,

Thank you very much for this post - I was beginning to lose hope that someone from Microsoft cared that so many of us are battling with this problem!

I am trying to configure my machine to allow me to connect to a local database file - rather than via SQL Server.

Here is my connection string, which works fine on my client's server and worked fine on my development machine under VWD Express / SQL Server Express before I installed Visual Studio 2005 Team Suite (Eval) + SQL Server 2005.

I am running XP Professional 2002 SP2, Visual Studio 2005 Team Suite (Evaluation), Visual Web Developer Express and SQL Server Express.

The short story is that I am able to run my ASP.NET applications quite happily under the Default Development Server (//localhost:2661/SQLServerExpressTest/Default.aspx for example), but //localhost/SQLServerExpressTest/Default.aspx generates the following error:

Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.

I would really like to be able to demonstrate my applications to clients without having to run VS to run the Development Server - I am bootstrapping my development business and want to join the Microsoft Empower program as soon as I can afford to, so that I can use VS 2005 Professional in anger.

I also need to be able to get a code-generator I'm beta testing to be able to read the data from SQL Express database files - and to run database file based DotNetNuke websites.

I have done the following in various attempts totalling over 60 hours in the last 4 months or so:
1. Checked that the SQL Server instance is running.
2. Checked that the SQL Browser is enabled and running.
3. Ensured that the folder is configured as an application in IIS.
4. Checked that Network Service - and Everyone, for that matter - is configured with full rights on the App-Data folder and files.
5. Checked the TCP/IP and Named Pipes are both enabled.
6. Deleted the (User specific) SQL Server Express Directory and rebooted.
7. Tried the SQL Express and teh SQL Server versions of the SQL Express executable.

I've listed the various threads I've looked at and tried to implement to get things going under my signature.

My connection string is:

<add name="ConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Database.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>

To reiterate, from an outcome point of view, I would love to be able to point IE to //localhost/foldername and have my ASP.NET data-based applications (including DotNetNuke insallations) work from local database files, without having to run an instance of VS 2005 or VWD Express for each one.

Your post is a great starting point, for me, because it lists what to check to make sure that it all works rather than proposing one solution to a specific problem someone is experiencing.

I would be extremely grateful for any help you could offer me.

My best guess is that installing VS 2005 (Team Suite) + SQL Server 2005 messed things up - and some of the threads I've seen seem to be related to this combination. I uninstalled SQL Server 2005, but it didn't make a big difference.

Thanks you very much, Ming.

Regards

Gary Bartlett
gb at prodsol dot co dot nz

Here is a list of threads I've looked at and tried in various combinations over the last few months:

http://forums.microsoft.com/msdn/showpost.aspx?postid=98346&siteid=1

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=441961&SiteID=1

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=496500&SiteID=1

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=521158&SiteID=1

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=481696&SiteID=1

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=125227&SiteID=1

http://www.sqljunkies.com/WebLog/ktegels/archive/2005/11/15/17401.aspx

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=455225&SiteID=1

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=124596&SiteID=1
Anonymous
September 25, 2006
The comment has been removed
Anonymous
September 30, 2006
With shipping SQL Server 2005, we heard from customer feedback about suffering make successful remote...
Anonymous
October 03, 2006
With shipping SQL Server 2005, we heard from customer feedback about suffering make successful remote
Anonymous
November 08, 2006
all you need is: CONN_STRING = "Server=.\SQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI"; You must allow Remote Connections too: Start->Programs->Sql Server 2005->Configuration Tools->SQL Server Surface Area Configuration. Click "Surface Area Configuration for Services and Connections". Choose "Database Engine->Remote Connections", select "Local and Remote Connections", Apply, OK
Anonymous
November 30, 2006
Can we change the name of SQl server Express, at the time of installation, from default machine name to any other name. IS this Possible, please help it is very urgent.
Anonymous
December 01, 2006
By default, SQL Express was installed as a named instance, and the fixed instance name is "sqlexpress", hence when you make connection, you need specify" Data Source = <machinename>sqlexpress" in your connection string.
Anonymous
December 03, 2006
Actually im trying to say, whether it is Possible to change <machinename> at time of installing Sql express. As apps made in sql server2K5 express, when they are distributed to clients we have to change the machine name in conn string. Is there any solution fr this.
Anonymous
December 08, 2006
I'm having a problem connecting with a Java application but I CAN connect using my .Net application - the user name and password are the same for both. The error I get is: com.microsoft.sqlserver.jdbc.SQLServerException: Cannot open database "CORNERS" requested by the login. The login failed. An interesing note - I get the same message if the database is not running. SQL Server Express 2005 is installed in mixed mode. Here is my connection string in the .Net appplication: <add key="connectString" value="Server=(local);UID=sa;PWD=myPasswd;Database=CORNERS" />. These are my values in my Java app web.xml - <init-param> <param-name>DBDriver</param-name> <param-value>com.microsoft.sqlserver.jdbc.SQLServerDriver</param-value> </init-param> <init-param> <param-name>DBURL</param-name> <param-value>jdbc:sqlserver://localhostsqlexpress:1055;databaseName=CORNERS</param-value> </init-param> <init-param> <param-name>DBUser</param-name> <param-value>sa</param-value> </init-param> <init-param> <param-name>DBPwd</param-name> <param-value>myPasswd</param-value> </init-param>. And yes, the port is 1055 - I checked to find it. I am using Microsoft SQL Server 2005 JDBC Driver 1.0 (sqljdbc_1.0.809.102). Does anyone have any idea what is wrong so that the login fails in the Java application but works in the .Net application?
Anonymous
December 08, 2006
Hi adisciullo , I'm afraid that our team is not very familiar with the JDBC driver. I suggest that you post your question on the SQL Server Data Access forum as members of our JDBC team normally monitor it for JDBC-related questions. Il-Sung.
Anonymous
December 09, 2006
Can you get a trace? Also, can you try our 1.1 driver? 1.1 driver has better tracing.
Anonymous
December 12, 2006
Hi, I am having connection problem with SQL Server Express 2005. The problem occurs everyday after 6pm (after working hour). The error messenge is: Microsoft SQL Server Login

Connection failed SQLState 01000 SQL Server Error: 10060 [microsoft][ODBC SQL Server Driver]{TCP/IP Sockets]Connection Open (connect) Connection failed SQL State: 08001 SQL Server Error: 17 [microsoft][ODBC SQL Server Driver]{TCP/IP Sockets]SQL Server does not exist or access denied. All computers which connect to the server will get this error messenge. I have been working on this for few days but without any luck. I would be grateful if someone could help. Thank you. Note: The computers are working fine before 6pm.

Anonymous
December 13, 2006
The error message indicates the client cannot open a socket to the sql server due to timeout. 10060 is socket error code for timeout. To verify this you could use telnet and attempt to open a connection to port 1433 from some client machine -> telnet 123.123.123.123 1433 where 123.123.123.123 is IP of SQL Server. I would check all network hardware between clients and server, it would be a firewall or router or application level firewall blocking traffic most likely.
Anonymous
December 22, 2006
Hello there, I have a connection problem with sql server express but i believe you can help me with this. First, I tried your Remote connection string above: "Provider=SQLNCLI;Server=<MachineName>SQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI "; and it works but somehow when i use my own database since your using the master, it ask for Login. Heres the error: Microsoft SQL Native Client error '80004005' Cannot open database <mydatabase> requested by the login. The login failed.
Anonymous
December 22, 2006
Hi, Junifer You need to grant dbaccess to your database for your login credential. 1) Assume you were using NT login, windows authentication, you can use ManagementStudio, connect to sqlexpress, go to security, add login, choose the account, and choose default database = mydatabase. 2) If you were using SQL login, you can go to security, found the account, click properties of it, then make sure it has access to your own database. good luck! Ming.
Anonymous
December 22, 2006
The comment has been removed
Anonymous
January 04, 2007
Hi, good thread. I've got SQLExpress running on a n XP server and a client. I can connect to my DB instance no problem from the server by name(not localhost)using SQL Server Authentication. I get an error 10060 on the client using the same strings in Studio Express under Connect To Server on the client. I've tried a multitude of recommendations. If I try to telnet to the port that the ERRLOG says the service is running on from the server, it connects. If I try it from the client, it says 'Could not open connection to the host'. I'm not sure what to tweak to get this to go. Thanks.
Anonymous
January 04, 2007
ahh....found it. check out the help screen under the TCP/IP properties screen under Protocols for SQLEXPRESS. short end is that if you are using a firewall you must use a static port. 1433 is recommended. This and all the rest of the above stuff. You also have to open the port in the windows firewall on both machines.
Anonymous
January 11, 2007
On vista when i start application as an administrator it create/delete data but when i run app in standard user mode it does not perform any operation with sql express...
Anonymous
January 15, 2007
I've got a Windows 2003 Server, where we just installed SQL Server Express 2005 and IIS on the same machine. Our application (classic ASP) errors with "Provider cannot be found. It may not be properly installed. " when trying to connect to the database with an anonymous connection (IUSR account). Oddly, it connects successfully if we turn off anonymous users. Any ideas?
Anonymous
January 15, 2007
Hi, Joel What if you turn on "anonymous" in IIS again, and try to use osql.exe to connec to your express, see whether the same error displayed. What if you turn off anoymous connection, use osql.exe, what happens? What is your connection string? The error you saw should not be related to anoymous users configuration but might there is exception. Thanks! Ming.
Anonymous
January 18, 2007
Hi Ming, Here's the connection string that I was trying to use: var connectionString = "Provider=SQLNCLI;Server=WEB01\SQLEXPRESS;Database=<databasename>;UID=<username>;PWD=<pwd>;"; This one was failing for IUSR connections, though it seems to work okay on our other development machines. This connection string seems to work okay: var connectionString = "DRIVER={SQL Native Client};Server=WEB01\SQLEXPRESS;Database=<databasename>;UID=<username>;PWD=<pwd>;"; What's technically the difference between these connection strings? Any idea of why one would work for IUSR and the other would not?
Anonymous
January 21, 2007
Hi, JOel The first one is using OLEDB, the latter is using ODBC driver. So, from the error message, it was probably caused by your OLEDB provider was not correctly installed or you specify the wrong one.

Which client provider were you using, namely, when you create your client application, did you configure any provider? what it is?
what if you modify the first one by replacing "Provider =SQLOLEDB" whether it works? LMK if you have further question. Thanks! Ming.

Anonymous
February 08, 2007
How can I access SQL Server from the internet ? I have a router with a public IP I have SQL Server 2005 Express installed on a LAN connected machine (192.168.1.64) I want to access this database from the internet. How can I do ? Firewall is already opened for the 1433 TCP Port Thanks
Anonymous
February 11, 2007
Hi, RJ You can use ASP or write ASP.NET application. Following info and example are good start: http://support.microsoft.com/kb/169377 http://samples.gotdotnet.com/quickstart/aspplus/doc/applications.aspx Good Luck! Ming.
Anonymous
March 06, 2007
Hi Ming, I also wish to connect to the SQLExpress through the Internet connection. However, not using ASP.Net but an .Net Windows Application. I have a Static IP on the server and I supposed I can write connection string as normal remote connection over the LAN? I attempted but failed to connect. My Server not running IIS, does it matter? (We disregard firewall issue) Thanks. Adrian
Anonymous
March 12, 2007
hi there, im using vb 2005 and im tring to acess a data base on a server via pocket pc application. i got an error on the connection string ! Failure to open SQL Server with given connect string. [ connect string = Provider=SQLOLEDB.1;Server=duros-mobile,1433SQLEXPRESS;Initial Catalog=praia;Integrated Security=SSPI; ] can you help me? thanks!
Anonymous
March 18, 2007
I am trying to connect to a SQL Server DB from a pocket PC. I use the following connection string on the Pocket PC. "Server=192.168.1.25,1433;Initial Catalog=exilog;User ID=nybc;Password=nybc" I can connect to the server using the IP, port and credentials from SQL Server Management Studio Express. But when I run the application in the emulator, I get a "SQL Server does not exist or Access is Denied" SQL Exception. This has been killing me for the past 5 days. Can someone please help me? Cheers, Sampath
Anonymous
March 19, 2007
Hi, John 1433 is the reserved port for sql default instance, your express was installed as a named instance, and by default it is using dynamic tcp port unless you specified. The solution could be [ connect string = Provider=SQLOLEDB.1;Server=duros-mobileSQLEXPRESS;Initial Catalog=praia;Integrated Security=SSPI; ] and make sure sqlbrowser service is started. Good Luck! Ming.
Anonymous
March 19, 2007
Hi, Sampath The error looks like you were using MDAC, and the message is too general to identify your particular problem. Hence, I suggest, you modified your connection string to [Driver={SQL Native Client};Server=192.168.1.25sqlexpress;Initial Catalog=exilog;User ID=nybc;Password=nybc" I assume you were connecting to sql express instance which is a named instance, and by default it is not using port 1433 which reserved by default instance, but a dynamic port. Or you can take a look at server errorlog to make sure your sql express was listening on tcp and find the port number, then replace 1433 in your connection string w/ the true number. Also, "Driver={SQL Native Client}" requires you must install SQL 2005 Native Client which is part of the 2K5 installation, this provider will populate more detail error info to help you figure out the root cause of connection failure. Good Luck! Ming.
Anonymous
March 31, 2007
This error was most frequently hitted by our customers, and in this post, give a brief summary of troubleshooting
Anonymous
April 03, 2007
I am confused. I have 2 windows 2000 sp4 machines that I want to connect to a SQL Express database. Initially I had problems with both machines then I updated MDAC on them and now one of them connects and the other gets the following error: Connection Failed: SQLState: '01000' SQL Server Error: 10061 [Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]ConnectionOpen (Connect()). Connection failed: SQLState: '08001' SQL Server Error: 17 [Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]SQL Server does not exist or access denied. I know that everything is configured ok on the SQL Express machine as one of the win2000 machines can connect. The only difference I can spot between the 2 machines is the version of the SQL ODBC driver. The one that works is 2000.85.1022.00 and the one that does not work is 2000.85.1064.00. I have no idea why they would have different drivers as the same version on MDAC was installed on both machines. Any help is much appreciated.
Anonymous
April 03, 2007
ConnectionOpen (Connect()) means you cannot open a socket to the remote SQL Server. I don't think this is due to the MDAC driver version. Most likely the tcp-ip port is blocked by Windows firewall and the "good" machine is actually connecting over named pipes and not sockets. So if you go through the steps of adding the SQL Express instance to firewall exclusion list everything should work. See this article for details -> http://msdn2.microsoft.com/en-us/library/ms175043.aspx
Anonymous
April 03, 2007
both machines are using TCP/IP
Anonymous
April 04, 2007
The comment has been removed
Anonymous
April 11, 2007
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Anonymous
April 26, 2007
i hava .net application with database in Access but when i run it it asks for sql server connection why
Anonymous
April 26, 2007
Dear Ming, Thanks for all the helpful comments - nevertheless I run into the following strange situation: I am writing a C# application in VS2005 which connects to a SQLEXPRESS database on a different server. I am using the following connection string: "Data Source=myServerSQLEXPRESS;Initial Catalog=myDB;Integrated Security=True". When running it from the IDE (either Debug or Release mode), the connection works perfectly - however, when starting the application directly (double-clicking myApp.exe), the connection fails with "error: 26 - Error Locating Server/Instance Specified". Do you have any idea? Best regards, Adrian
Anonymous
May 19, 2007
The comment has been removed
Anonymous
May 19, 2007
Hi Ming, I have a problem with a connection to database engine. Evert time when I connect it, it always gives me this message: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (.Net SqlClient Data Provider) For the server name, I put in <my servername><my instance>. I checked sqlbrowser and it's running. I changed the remote connection in database engine to local and remote conncection, but it still doesn't work. Please help me out. Give me a solution to this problem. Thanks so much for your help.
Anonymous
May 21, 2007
Hi, Carl 1) What is the error message in server ERRORLOG? You can also see it from system application event log. If there is problem that indicate sql server terminate client connection, that means your client request has problem, and it is out of connectivity scope, you need to check your client application. 2) Are you connecting Express? If so, please doublec check the instance name is "sqlexpress" in your connection string.If not, make sure you specifiy the correct instance name. 3) Open SQL Server Configuration Manager, click client protocols, check whether TCP/NP protocols are allowed for remote connection? 4) Look at your server ERRORLOG, see whether your sql instance is listening on the NP and TCP port. 5) On your client machine,do "new view <remoteserver>" and "telnet <remoteserver> <tcpportthatserver listing on>" See whether that works? Good Luck! Ming.
Anonymous
May 22, 2007
The comment has been removed
Anonymous
June 08, 2007
I have visual basic .net express and sql express. I have created my db's so I know that I can use this instance. I have enabled named pipes, remote connections, tcp/ip for both client protocols & protocols for sqlserverexpress. I have done everything that is listed on this forum to try and resolve my connectivity issues. I cannot connect from my webapp locally to my instance. I get the generic error: "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) " I see no errors in the error log. I have made sure my connection string says computernamesqlexpress. i can put anything in it and I still get the same error. I am going out of my mind. Please help.
Anonymous
June 11, 2007
The comment has been removed
Anonymous
July 10, 2007
The comment has been removed
Anonymous
July 11, 2007
Meenal Please refer the following blog to check out what is potential cause of the 'Login Failed'. http://blogs.msdn.com/sql_protocols/archive/2006/02/21/536201.aspx Good Luck! Ming.
Anonymous
July 11, 2007
Meenal Please refer the following blog to check out what is potential cause of the 'Login Failed'. http://blogs.msdn.com/sql_protocols/archive/2006/02/21/536201.aspx Good Luck! Ming.
Anonymous
July 11, 2007
Meenal Please refer the following blog to check out what is potential cause of the 'Login Failed'. http://blogs.msdn.com/sql_protocols/archive/2006/02/21/536201.aspx Good Luck! Ming.
Anonymous
August 15, 2007
Ming, I have a Vista customer with an odd problem. If his router is on he does not get a connection to the SQL database or gets one so slow that it is unusable. If he turns off the router it works right. If he turns on the router after making a sucessful connection it works right. I am presuming that this a connection timeout problem and we will try a longer setting there. My question to you is what SQL 2005 is doing that conflicts with the router? He is running the application and the SQL Express database on a single machine and it is the only machine connected to the router. In trying to fix this we have added sqlservr, sqlbrowser and port 1433 to the firewall exceptions and set scope to his subnet only. The router manufacturer say the router should not be doing anything to calls limited to the subnet. TIA for any ideas you have on this problem.
Anonymous
September 16, 2007
The comment has been removed
Anonymous
September 17, 2007
The comment has been removed
Anonymous
September 17, 2007
vista stand alone computer. sqlexpress default installation (shared memory enabled). having trouble connecting. error is '[dbnetlib open] sql server does not exist or access denied'. this error seems to be a bit contradictory to me. information ive read about sqlexpress states that 'dbnetlib' is only to be used for tcpip connectivity to sqlexpress server. not for shared memory. if sqlexpress is installed locally, and client is also local, and sqlexpress is configured to use shared memory for connectivity - why would dbnetlib be utilized at all? is my connect string not ideally configured to use shared memory? my connect string presently looks like; Provider=SQLOLEDB.1; Integrated Security=SSPI; Initial Catalog=MYDB; Use Encryption for Data=False i dont know how to step by step troubleshoot a shared memory connection.
Anonymous
October 03, 2007
I had the following error when connecting ODBC to sqlserver on a different machine "does not exist or access is denied". After reading loads of posts and trying this, that and the other for weekades I came up with what worked for me (Phew!), it might work for you. In "Local Users and Groups" I added myself (power user) to the "SQLServer2005MSSQLServerADHelperUser$INSTANCE", "SQLServer2005MSSQLUser$SERVER$INSTANCE" and "SQLServer2005SQLBrowserUser$SERVER" groups. BINGO IS HIS NAME-O Obviously obvious from the error message isn't it just..... HTHUMF
Anonymous
October 18, 2007
I think I got a solution... the error is in the connection string and in the configuration... if you'll use the IP instead of (loca), localhost, <machinename>SQLEXPRESS, it will work. So use 127.0.0.1... the server will love it... and one more thing... at Protocols (SQL Server Configuration) at TCP/IP, set at IPAll - TCP Dymanic ports 1433 and one more... of course... set trusted connection to true... (you should allow remote connections too).. So, the connection string is : "Provider=SQLNCLI;Server=127.0.0.1;Database=database;Trusted_Connection=yes;" Hope this helps someone.. P.S. : from my point of view.. I think this solution is a stupid one as long as local = localhost = 127.0.0.1... I guess for the SQLExpress.... local = localhost != 127.0.0.1
Anonymous
October 22, 2007
I do not get the error "cannot find odbc" when I run my ASP.NET website with debugging (using the service on a random port #). But when I try the site using http://localhost/websitename/index.aspx it says it cannot find the ODBC connection. Must be something to do with my IIS config... can't find anything that pertains to this however..
Anonymous
November 15, 2007
Hi I have problem in connecting sql express sp2 in vista. the error is An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) I have done:enabling tcp/ip and named pipeline for sql server. please help me out.
Anonymous
November 18, 2007
The comment has been removed
Anonymous
December 11, 2007
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Anonymous
December 15, 2007
Stdimmen dadrin übersein, dasss untear Bersücksichtigung dser Art der SQaL Sserver-Instanaz i Usaer in daer Lasge, einsen einzigen Benutzer die Verbindsung zur Datsenbank zu einem beliebigen Punkt in der Zeit. Allerdings haben gesagt, diese gibt es auch einen Weg um zu prüfen, ob es eine offene Verbindung zu dieser Datenbank aus meiner. Net-Code
Anonymous
December 15, 2007
The comment has been removed
Anonymous
December 15, 2007
Sqdlexdpress lodkal instdalliert idst, undd der Kundde isdt audch vord Odrt, udnd sqlexpresss so konfidguriert ist, verwenden desn gemeinsamen Speicher für die Konnektivität - warum sollte dbnetlib auf allen genutzt werden? String ist meine Verbindung nicht optimal konfiguriert, um mit gemeinsam genutzten
Anonymous
December 15, 2007
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Anonymous
May 20, 2008
PingBack from http://www.ie16.com/provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server/
Anonymous
May 20, 2008
PingBack from http://www.ie16.com/re-provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server/
Anonymous
May 20, 2008
PingBack from http://www.ie16.com/reg-error-while-browsing-report-server-in-iis-manager/
Anonymous
May 20, 2008
PingBack from http://www.ie16.com/re-reg-error-while-browsing-report-server-in-iis-manager/
Anonymous
June 19, 2008
Hi I have problem in connecting sql Server in vista. i was develop a desktop application on visual studio. Setup contains Sqlserver and dotnet framework . Its works fine when i was deploy on Xp. but it did not work on vista and throwing exception that is given below. the error is An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) please help me out.
Anonymous
June 19, 2008
hey my database name is gssportalsqlexpress but i'm unable to connect from my tomcat. It is giving Login failed for user .. Even i chaged my database to Mixed Mode(Windows as well as SQL Authentication) please help me.
Anonymous
June 19, 2008
Hey i configured my data base in tomcat in this way <ResourceParams name="MSSQL"> <parameter> <name>url</name> <value>jdbc:sqlserver://gssportalsqlexpress:1433;DatabaseName=webexpenses3 </value> </parameter> <parameter> <name>password</name> <value>sql@gss</value> </parameter> <parameter> <name>maxActive</name> <value>4</value> </parameter> <parameter> <name>maxWait</name> <value>5000</value> </parameter> <parameter> <name>driverClassName</name> <value>com.microsoft.sqlserver.jdbc.SQLServerDriver</value> </parameter> <parameter> <name>username</name> <value>sa</value> </parameter> <parameter> <name>maxIdle</name> <value>2</value> </parameter> </ResourceParams> I'm able to login from sql server management studio but when i try to connect form tomcat it is giving this error org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFact ory (Login failed for user 'sa'.) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSou rce.java:855) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource .java:540) at com.gssamerica.expensereporting.ui.common.SQLManager.getConnection(SQ LManager.java:95) at com.gssamerica.expensereporting.business.dao.CacheHome.getExpenseIds( CacheHome.java:46) at com.gssamerica.expensereporting.business.listener.LookupCacheListener .cacheExpenseId(LookupCacheListener.java:183) at com.gssamerica.expensereporting.business.listener.LookupCacheListener .contextInitialized(LookupCacheListener.java:55) at org.apache.catalina.core.StandardContext.listenerStart(StandardContex t.java:3827) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase .java:823) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:80 7) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595) at org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDe ployer.java:903) at sun.reflect.GeneratedMethodAccessor56.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.jav a:216) at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256) at org.apache.commons.digester.Rule.end(Rule.java:276) at org.apache.commons.digester.Digester.endElement(Digester.java:1058) at org.apache.catalina.util.CatalinaDigester.endElement(CatalinaDigester .java:76) at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source ) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement( Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContent Dispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Un known Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at org.apache.commons.digester.Digester.parse(Digester.java:1567) at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDep loyer.java:488) at org.apache.catalina.core.StandardHost.install(StandardHost.java:863) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.j ava:483) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427 ) at org.apache.catalina.startup.HostConfig.checkContextLastModified(HostC onfig.java:800) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1085) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java :327) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl eSupport.java:119) at org.apache.catalina.core.StandardHost.backgroundProcess(StandardHost. java:800) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.p rocessChildren(ContainerBase.java:1619) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.p rocessChildren(ContainerBase.java:1628) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.r un(ContainerBase.java:1608) at java.lang.Thread.run(Thread.java:595) Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: Login failed for use r 'sa'. at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError (Unknown Source) at com.microsoft.sqlserver.jdbc.TDSTokenHandler.onEOF(Unknown Source) at com.microsoft.sqlserver.jdbc.TDSParser.parse(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.sendLogon(Unknown So urce) at com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(Unknown Source ) at com.microsoft.sqlserver.jdbc.SQLServerConnection.access$000(Unknown S ource) at com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecu te(Unknown Source) at com.microsoft.sqlserver.jdbc.TDSCommand.execute(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(Unkno wn Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknow n Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover (Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Sour ce) at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source) at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(Driv erConnectionFactory.java:37) at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(Poolable ConnectionFactory.java:290) at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(Bas icDataSource.java:877) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSou rce.java:851) ... 41 more Jun 20, 2008 12:43:10 PM org.hibernate.util.JDBCExceptionReporter logExceptions WARNING: SQL Error: 0, SQLState: null Jun 20, 2008 12:43:10 PM org.hibernate.util.JDBCExceptionReporter logExceptions SEVERE: Cannot create PoolableConnectionFactory (Login failed for user 'sa'.) Jun 20, 2008 12:43:10 PM com.gssamerica.expensereporting.business.dao.StatusHome StatusList SEVERE: find by example failed org.hibernate.exception.GenericJDBCException: Cannot open connection at org.hibernate.exception.SQLStateConverter.handledNonSpecificException (SQLStateConverter.java:103) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.j ava:91) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelp er.java:43) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelp er.java:29) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager .java:420)

Anonymous
July 05, 2008
Installed SQL express 2005 [ SQLEXPR_ADV ]. Operating system vista. I couldn't create locally a connection under object explorer. The following error pops up : TITLE: Connect to Server

Cannot connect to BINYAM-PCSQLEXPRESS.

ADDITIONAL INFORMATION: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476

BUTTONS: OK

Anonymous
July 05, 2008
Installed SQL express 2005 [ SQLEXPR_ADV ]. Operating system vista. I couldn't create locally a connection under object explorer. The following error pops up : TITLE: Connect to Server

Cannot connect to BINYAM-PCSQLEXPRESS.

ADDITIONAL INFORMATION: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476

BUTTONS: OK

Anonymous
July 11, 2008
Help Help I have been successfully running a connnection to my sql server express 2005 from several computers on our local network. However I am having problems now with two pc's after I changed the windows user account name and password. This is probably a simple fix, but where can I fix this. Do I need to accordingly setup/change a windows user account on the server? Any advice is much appreciated!
Anonymous
July 11, 2008
I should clarify that it is the username on the 2 client pc's that have been changed, which seemed to cause a problem logging on to SQL on the server.
Anonymous
July 12, 2008
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Anonymous
July 30, 2008
This is for your information. If you want to understand the dynamic allocated port on SQL Server. This KB article is pretty good. So when SQL Server allocate a port you can almost be sure it stay that port until you change it manually.
Anonymous
December 22, 2008
localhostSQLEXPRESS gives Unrecognized Escape Sequence
Anonymous
December 22, 2008
Perhaps you are using C# and not using @ string prefix, then try: localhost\SQLExpress Or you can use @ prefix on connection string, then you do not need to escape backslash: @"Server=localhostSQLExpress;..."
Anonymous
January 12, 2009
I am almost getting frustrated please help me. I need to establish a connection to the sqlexpress on my system from my visual c#. I am programming a smart device using visual studio 2005. I did the following I enabled remote connections from the surface area config for tcp and named pipes I started the browser I could connect from MS visual studio The server is up and running but when i tried to connect from visual studio using the code using System; using System.Collections.Generic; using System.Text; using System.Data.SqlClient; using System.Windows.Forms; using System.IO; using System.Reflection; using System.Data; namespace mQAQI { class sqlDatabaseUtil { SqlConnection dataConnection = new SqlConnection(); public void getConnection() { try { String connString = "Data Source=abudawe\sqlexpress;Initial Catalog=mQAQI;Integrated Security=True"; //String connString = "Data Source=xx.sdf"; dataConnection.ConnectionString = connString; dataConnection.Open(); MessageBox.Show("Connected to database successfully."); } catch (FileNotFoundException fe) { MessageBox.Show(fe.StackTrace + "Error Accessing the database."); MessageBox.Show(fe.Message); } catch (SqlException sqle) { MessageBox.Show(sqle.StackTrace + "Error Accessing the database."); MessageBox.Show(sqle.Message); } catch (IOException io) { MessageBox.Show(io.StackTrace + "Error Accessing the database."); MessageBox.Show(io.Message); } /* catch (Exception e) { MessageBox.Show(e.StackTrace + "Error Accessing the database."); Console.WriteLine(e.StackTrace); }*/ finally { dataConnection.Close(); } } } } I get the following message "specified server not found: abudawesqlexpress" Please what am i doing wrong. I have battled with this issue for the past 4 days Thanks
Anonymous
May 03, 2009
the error is An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Anonymous
May 22, 2009
I repeatedly get the message "Microsoft SQL Server 2005 was unable to install on your computer." I uninstall the and reinstall SQL and FFI software and same message. Error signature EventType: sql90setup P1: unknown P2: 0x643 P3: unknown P4: 0x643 P5: unknown P6: unknown P7: msxm16.msi@6.20.1099.0 Error Report Contents c:Program FilesMicrosoft SQL Server90Setup BootstrapLOGSqlSetup0002.cab What do I do?
Anonymous
June 07, 2009
I am using Sql server 2005 express with my app writen in vb6. I have a problem that after a day of work (when I come in the morning ) the app is working very slow. So when I am opening the sql managment tool or restarting the sql service everything is back to noraml. i was to trying to configure the database to auto close = false and also auto shrink is off. Please see i you can help... Thanks in advance Alon
Anonymous
July 06, 2009
I am having issues with the Windows XP firewall. I have made the exceptions for sqlsrver.exe and sqlbrowser.exe as well as udp ports 1433 and 1434. The connection works fine as long as the fire wall is turned off. Any ideas?
Anonymous
July 17, 2009
The comment has been removed
Anonymous
July 19, 2009
Hi to All, Its a very generous problem, which may have many solutions. But as we have witnessed so many user saying that they have tried everything. What solved my problem is.. I upgraded sql server 2000 from sp2 to SP4 and if you already have sp4 on sql server 2000 then run Instcat.sql. As per my experience I can assure you this will work for sure, if you are exhausted with all the other workarounds. Thanks, Mithalesh mithalesh.gupta@gmail.com
Anonymous
October 16, 2009
Hi, Our company just deployed Active Directory Services in an effort to improve security. Before, I had no problems connecting to SQL Express. Now, I've uninstalled SQL Express, reinstalled, etc. Tried different things, but can't seem to establish a connection. Thanks for any insight.
Anonymous
January 25, 2010
The comment has been removed
Anonymous
October 20, 2010
Hello, I am trying to make an odbc connection from a Windows XP pro Station to a Windows 2008 R2 Server with SQL 2008. When i do a command on the server "SQLCMD -L" i can see the server and the server instance of the SQL server so like: <SERVERNAME> <SERVERNAME>SQLEXPRESS Within the Server i can also make perfectly all odbc connections i want. Coming to the client, when i do there a command "SQLCMD -L"i only get to see the servername <SERVERNAME> But bot the instance. When i still try to make a connection to thsi server with an odbc connection i get a message like "Sql server does not exist or acces is denied" SQl server error 10060 How can i make the instance available to the client?
Anonymous
November 07, 2013
Hi, I'm not able to Insert,Select,Delete data on my sqlexpress using webservice (ASP.NET) which is hosted on IIS 6.0 windows 7 ultimate. Whenever i tried to connect it gives me error saying Login Failed: Database is read-only.. Please help me with this... with regards, Padam Sonar

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Troubleshoot Connectivity Issue with SQL Server Express 2005

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Cannot connect to BINYAM-PCSQLEXPRESS.

BUTTONS: OK

Cannot connect to BINYAM-PCSQLEXPRESS.

BUTTONS: OK

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