Intermittant disconnection of Shared Drives on Windows 7 Client machines hosted in WIndows Server 2008 Standard Edition

Question

The environment - Windows Server 2008 Standard/Windows 7 32 bit Client machine.
Share - It is not a DFS share.
Antivirus - McAfee
The issue - 1 user is unable to connect to a particular shared drive hosted from within the Windows Server 2008 Standard file server.  This drive is one of the multiple drives which are supposed to be connected to the user machine during logon using
the logon script.  All the other drives mentioned in the logon script gets mapped fine but one particular drive does not.  The user uses a laptop and we have checked his connections while in LAN, Wireless, VPN.  Everything seems to be working
fine apart from this one shared drive.  Rest of the users within that office gets the drive fine but just not this one user.  Since we are not domain admins so we do not have a visibility of the group policies linked to this particular drive and
hence RSOP as well does not help.  We have not seen the user getting logged into the machine using a TEMP profile as well for us to ascertain that the issue may be with a TEMP profile logon. 
Please note that the drive does get connected at times and at times the connection just drops off!  As an interim measure the local IT has created a batch file and given it to the user which maps the drive for the user. 
Any help in resolving this long impending issue would be much appreciated!
Suman

Answer 1

Hi Suman,
You could keep the session always active to workaround this issue. Please open Control Panel -> Administrative tools -> Local Security Policy -> Local Policy -> Security Options and set the value of the policy Microsoft Network Server:Amount
of idle time required before suspending a session to 99999 and see how it works.
This security setting determines the amount of continuous idle time that must pass in a Server Message Block (SMB) session before the session is suspended due to inactivity. Administrators can use this policy to control when a computer suspends an inactive
SMB session. If client activity resumes, the session is automatically reestablished. For this policy setting, a value of 0 means to disconnect an idle session as quickly as is reasonably possible. The maximum value is 99999, which is 208 days; in effect, this
value disables the policy.
For more detailed information, please refer to the thread below:
Loss of mapped drive, networked drive disconnects
http://social.technet.microsoft.com/Forums/windows/en-US/c6da707b-5224-40f5-8d0e-e8985453221d/loss-of-mapped-drive-networked-drive-disconnects
You could also refer to the article below to troubleshoot the issue:
Mapped Drive Connection to Network Share May Be Lost
http://support.microsoft.com/kb/297684
Regards,
Mandy
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