I can´t no longer access to a shared folder.

Camel0t
Camel0t used Ask the Experts™
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Hi,

I´ve got a windows 2003 domain in a central office where i have a shared folder, and a delegation with a computer working as workgroup connected by VPN to the central, i had this shared folder mapped as a network unit but it has stop working and now when i try to access to this network an error message appear saying "this network resource is no longer available".

I have try to connect to this network resource using another credentials (as administrator) but it fails, I can ping from the delegation computer to the central server and connect to it by using terminal server,and I can ping from the central server to the delegation computer I have verified time sincronization among central server and the delegation, I can access to a shared folder in the delegation computer from the central server
(the opposite path). I have disabled the kaspersky firewall installed in the delegation computer and the windows firewall. I also have created a new shared folder in the server without any access permissions but i neither can access to it. I have scanned the delegation computer with several antivirus in order to discard any virus issue.
Does anyone what could be happening?.

Thanks in advance.
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Distinguished Expert 2017
Commented:
Try from the command line
Net use <driveletter>: \\servername\sharename /user:user@domain
You will be prompted for the password.
If it maps, that's good. If on the other hand it does not, if it returns an "system error 85" this means that there is a stale connection on the servername it should not have an issue if you access using an IP \\ipaddress\sharename instead.

Check the servername's shared sessions to see if it has/reflects a connection from the workstation you reference. Close the session and it should clear the issue up.

Commented:
Check Firewall might be blocking, File and printer sharing

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Commented:
Sorry about the delay, i have pending to try your solutions, I´ll make you know as soon as i have review them.

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