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Ok this is an odd one, but is happening often enough its getting quite annoying.

I recently installed Windows 7 on my work computer (about 2 months ago) and every so often I lose access to network shares on our work network.

Its one server in particular - other shares are still working fine.

I have a number of folders mapped as a drive, and all of the ones on a particular file server have lost access. If I try to access the machine directly (\fileserver\d$) it doesn't work either with this message:

Windows cannot access \fileserver\d$. You do not have permission to access \fileserver\d$. Contact your network administrator to request access

Once I reboot the computer, access is restored like it should be. The computers are all on a domain and my user has administrator level access to the server in question.

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So it just happened again. Haven't rebooted since I wrote this question on Oct 14th. Just lost access. – dubRun Oct 20 '09 at 13:39
Ok, some more info - I connected to a VPN (PPTP) and noticed the mapped drives on the server in question are no longer working after I disconnect from the VPN. Other servers I can log into stil. – dubRun Nov 6 '09 at 15:36
Does your default gateway change when you connect to the VPN? – sgmoore Apr 9 '10 at 11:53

On the remote computer set the user account so that user session doesnt expire.

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I would make sure that the network drives have fixed IPs.

Any NAS, network printer or other device you want to access via the network should be assigned a fixed IP so it doesn't get 'lost'.

This can be done in most router configurations.

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I can still resolve the IP address, and it returns a ping. – dubRun Nov 6 '09 at 15:37

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