Test connection failed because of an error in initializing provider. Cannot generate SSPI context SQL Server Network Interfaces: The logon attempt failed

Question

When trying to connect to a server on Visual Studio, the following error occurs, is there anything I'm missing or should be checking?

Test connection failed because of an error in initializing provider. Cannot generate SSPI context SQL Server Network Interfaces: The logon attempt failed

I'm trying to connect to a server in order to deploy SSIS Package from Visual Studio.

Thanks in advance!

Answer 1

Hi @sql dev ,

Please check first:

The server name and instance was selected and configured by browsing for the nstance to connect to
The user account was checked to ensure it had appropriate permissions in the instance and required database
The windows firewall is turned off on both the SQL Server and the remote server
The server was pingable
Could telnet to the port without error

"Cannot generate SSPI context" error when using Windows authentication to connect SQL Server

'Cannot generate SSPI context' means that SSPI tries but cannot use Kerberos authentication to delegate client credentials through TCP/IP or Named Pipes to SQL Server
Because as mentioned above there are various reasons why Kerberos connections fail, it is recommeded to fix the error with Kerberos configuration manager

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Answer 2

Cannot generate SSPI context SQL Server Network Interfaces

It's a Windows/Kerberos authentication issue, see https://learn.microsoft.com/en-us/troubleshoot/sql/connect/cannot-generate-sspi-context-error