go to credential manager and fill out the connection id of the user in the windows section
username and password.
now try and connect using explorer or use the net use command
net use * \\computername\sharename and enter the credentials domain\user password
credential store is a per user item.
Is it worth checking UNC? You mentioned it used to prompt for credentials. I have seen environments just refuse entry because UNC security level needs changing.
For a workgroup machine, you don't need the host file for AD access.
Configure 2 things: add the domain suffix in the NIC properties and add the domain controller(s) as DNS servers.
Then, with any windows 10, with an empty hosts file, you may access domain resources.
"Nic Card - TCP/IP - V4 properties - Advanced - DNS tab - Append these DNS Suffixes (in order)"
Yes, that's it. if your domain is named mydom.local then that would be the suffix.
2 nothing new. I am not saying that it is required - having a default suffix set allows to use \\computername\share instead of \\computername.mydom.local\share (just saves you some typing)
3 it's not needed anymore and you may remove it.
Its me and the question changed but its the same problem.