Windows Server 2012 r2 sets the resolution to 960x768, how to fix it?

Question

Screen resolution

Guys, help! Windows Server 2012 r2 sets the resolution to 960x768 on one of the three computers connected to it, how to fix it? Two computers are connected to the server, they don't even have their own hard drives, one computer starts up correctly, the second one loses permission, it's impossible to work, half of the table is not visible. On the third computer, too, everything starts fine. I must say right away that I am an oak oak in these matters, I can’t change configurations, dig into the registry and write batch files for me a dark forest, I didn’t find similar situations on the Internet. Previously, it already happened, cured it with a banal reboot, today this method did not work.