Preventing Disconnected Network Drives
1.Command line
net config server /autodisconnect:-1
This disables the autodisconnect “feature” and should be set on the server holding the share.
2.registry
Open up regedit and browse to:
HKLM\System\CurrentControlSet\Services\LanmanServer\Parameters
Set the REG_DWORD value “autodisconnect” to HEX 0xffffffff. This will disable this feature. You could also specify a length of time before it disconnects. The dword value can be set anywhere from 1 to 65535 minutes.