The specified network name is no longer available or computer is not accessible. You might not have permission to use this network resource error when accessing file shares.

Question

The specified network name is no longer available or computer is not accessible. You might not have permission to use this network resource error when accessing file shares.

Anonymous

We are having a strange issue with one of our clients that we have yet to figure out and I feel like we have tried just about everything and running out of ideas. All we are trying to do is set up file shares on one of the PCs in the office (out of 5). The shares have been set up and can be accessed all the time by 3 out of the 5 computers (all 5 are running win7). The other 2 laptops (whether hard wired or running on wireless) have intermittent access to the shares. Everything will be working fine and then randomly they cant see the shares anymore and get a permissions error. Once the pc that is hosting the shares is rebooted, the 2 laptops can then again see the shares. I brought my own laptop in and it could access the shares immediately while the 2 laptops weren't able to.

What we have done so far;

Gave full control to "Everyone" at the root directory of the shares
Created another admin user on the host machine and gave it full control to the root directory of the shares
Uninstalled antivirus on both of the laptops
Checked all machines are in the same workgroup (actually created a new work group and put everyone in it after the fact)
Enabled NetBIOS over TCP/IP on both machines
Changed everyone's network type to "Work"
Disabled router firewall
Disabled Windows Firewall
Cleared credential manager
Changed network access in local security policy
Turned on all advanced sharing options (including sharing for devices that use 40- or 56-bit encryp)

I think there were a couple other little things that we did try but changed them back because they did not make a difference. It is difficult to troubleshoot because it is intermittent, so of course 85% of the time we go out to work on them they can connect and then we are shooting in the dark.

We get either of these errors when they cant connect:

The specified network name is no longer available.......
\computer is not accessible. You might not have permission to use this network resource........

Our next option is to wipe both the laptops and start them fresh, but before we do that I would like to hear if anyone else has any idea what might be going on????

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Answer 1

Hello Sam,

Thank you for posting your query in Microsoft Community.

I appreciate the brief information provided by you which will help us to assist you better.

This issue can occur if the Windows 7-based computer to which you are trying to connect is configured to restrict access over anonymous connections.

To resolve this issue, set the value of the restrict anonymous registry entry to 0. To do this, follow these steps:

Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

How to back up and restore the registry in Windows

To resolve this issue, set the value of the restrict anonymous registry entry to 0. To do this, follow these steps:

Click Start, click Run, type regedit, and then click OK.
Locate and then double-click the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa 3. On the right side, double-click restrictanonymous. 4. Make sure that the value in the Value data box is set to 0, and then click OK. 5. Close Registry Editor. 6. Restart the computer.

Note There may be other reasons that you receive this error. For more information, please see the "Similar problems and solutions" section.

Hope the above suggestions help . Please revert with the status of the issue.

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The specified network name is no longer available or computer is not accessible. You might not have permission to use this network resource error when accessing file shares.

1 answer