Situation: The client has a windows 2012 R2 server. They check Reconnect at sign in mapping a network drive. However, it doesn’t work. Whenever restarting the server, mapping drive shows red X. They need to re-map it.
Troubleshooting: 1. Disable Fast Logon Optimization on the client. To do so, please go to Computer Configuration\Administrative Templates\System\Logon\Always wait for the network at computer startup and logon
In our case, the user login name and mapping network drive name are the same but the password are different, for example, user for both login computer and mapping are blin, but their passwords are different. The resolution is to setup the same password or using different user name, for example blin for login and rlin for mapping.