So, you knew I was going to ask some crazy questions.
Basically, a computer could no longer contact the domain controller, and the usual fixes weren’t working. What eventually worked is we connected to the VPN, and THEN it joined the domain.
Probably the most important detail that I’m sketchy on is the other sysadmin did something in Powershell – Set-DNS something to the primary DNS server.
Upon restart, there was no network connection.
I logged in as local admin, and connected to the VPN. Then I logged in successfully as the main computer user.
But I can no longer connect to the work network, and it is a straight Ethernet connection, except by connecting to the VPN.
My suspicion is the other sysadmin fiddled with the DNS settings, but I can’t be sure.
Has anyone ever heard of this? If only I had paid attention to the command he used. Should I be looking at something simple like network connection properties. I enabled IPv6, and it didn’t help.
Source: r/sysadmin · by /u/cknoettg