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Windows 2012 Network Share: The specified network name is no longer available

Shares created on Windows Server 2012 R2 are are inaccessible from Windows XP, Windows Server 2003 or Windows Server 2008.

When you try to access the share you will get an error message stating “The specified network name is no longer available”. Windows 2012 will not accept traffic from an older operating systems.

In rorder to fix the issue, a registry setting on Windows Server 2012 R2 must be modified as listed below:

Back up the Registry Hive/Key and make the following change:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\DependOnService

Original Value: SamSS Srv2

Change to: SamSS Srv

Note: Just delete the 2

After making the change, reboot Windows Server 2012 R2

Note: You may also need to reboot the clients/servers involved

Thanks,
WintelAdmin

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