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Windows 7 Professional randomely losing mapped drives

We have Windows Server 2003 with shared drives. We have Windows XP Pro and Windows Vista Ultimate workstations and have no problems with any of these machines.Drives are mapped on file server . I have Windows 7 Professional pre-installed in several workstations.Randomely on several of these machines,users are reporting that they lose connection to shared drives. A Red X is showing on all shared drives and double clicking on these does not work.The PC's are not idle at time of disconnect.Trying browse to drives using \\servername\share does not work.When the drives disconnect users can still access Internet and Exchange server for email which is also on the file server. Logging off and logging on again is also unsuccessful.The only way to get access to the shared drives is to restart the PC. When I ping the file server sometimes I get reply (Time:1ms, 2ms,10ms, timeout, timeout, etc) and other server only time of 1ms that is good!

What should I do? Is that related to any updated on widows server 2003 (file server) or any hardware issues on my switches?

Dercio Tembe
Dercio Tembe
1 Solution
Darius GhassemCommented:
On Windows 7 machine disable autotuning http://www.sysprobs.com/windows-7-network-slow
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