By default, dormant connections are keep open for 10 minutes.

If you have an application that opens/closes and reopens a UNC path less frequently than 10 minutes, you can reduce network traffic by increasing the default.

Navigate to:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanWorkstation\Parameters

Add Value name KeepConn as a type REG_DWORD. The default is 600 seconds and the range is 1 - 65,535 seconds.

This is the redirector equivalent to autodisconnect.