Network drive disconnects, drops


  • Network drive shows red x’s
  • Files on desktop, documents, downloads grayed out
  • N drive disconnects
  • Windows explorer shows CSC-Cache as network drive filesystem

Solution #1:  Clear Cache

  • Add a registry entry
  • Open regedit
  • Traverse to the path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Csc\Parameters
  • If Parameters key does not exist under CSC you can create a new node with that name.
  • Now in the Parameters node create a new registry value with the name FormatDatabase of type REG_DWORD (i.e DWord 32-bit value)
  • Set the data in this new registry value to 1.
  • Close registry editor.
  • Reboot the machine


Solution #2: Disable Disconnect and Autotuning

  • Windows will drop idle connections after a specified time-out period, I think it is 15 minutes by default, to prevent wasting resources.  If you wish to turn off the auto-disconnect feature, type the following in an elevated command prompt and hit Enter.
net config server /autodisconnect:-1
  • To turn off auto-tuning, open an elevated command prompt windows, type the following and hit Enter:
netsh int tcp set global autotuninglevel=disabled
  • To turn-off the auto-disconnect feature, you could also edit the Registry.  Navigate to the following key and change the hex value of autodisconnect to ffffffff.