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Robert Pilcicki

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Domain computer lose connection to mapped drives

I have a number of computers connected to a Windows Server 2012R2 Domain.   Recently, a number of workstations are repeatedly losing access to the single mapped drive that was created through the server's GPO.    When I click on the red X I get the following error that "The local device name is already in use"User generated image
When I expand the network locations, click on the server and select the shared drive it asks me to enter network credentials with a note:   "The system cannot contact a domain controller to service the authentication request"   User generated image
After I enter the administrator credentials (and check Remember my credentials) I get the following error
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When I close out the error message connection to the shared folder is restored.     This server has been running with the same configuration for over 2 years without incident.   I have run DCDIAG but found no errors.    I have tried deleting the network credentials from the workstations and reentering them, but that has no effect.   All users have local admin privileges.
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arnold
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stale sessions. network issues?
check the server's management, shared folders.
Do you use DFS or server based share?

profile corruption.

the "it has been working for x number of years." or "no changes have been made."

An update with an older system could explain.
Are all your system windows 8 and newer? or you have some older?
On those workstations, what is reported for DNS with ipconfig /all?
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Robert Pilcicki

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"On the workstations that never had an issue the server's IP address was already listed in the DNS settings "
In general, I try to avoid static IP settings on anything except servers, routers, and switches.  If I want anything else to have a consistent IP address, I set it up with a registration in the DHCP server.  That can go a long way to avoiding this sort of issue.