AG only SOMETIMES recognizes external server

[MythicalCheese]

Hey all. I use AG server on both my main computer (call it M1) and another computer (call it MBP).
AG always recognizes my M1 server, but only sometimes recognizes MBP server. It's strange - it usually plays most of the AG instances connected to MBP, but not all of them. And also NONE of those instances say the title "MBP" like it used to and like it does when it is randomly working; it just says the IP instead. This is a problem most of the time, but randomly everything with that MBP server's connection does actually work.

And I always open MBP server, then M1 server, then M1 PluginTray app (to be safe) in that specific order BEFORE opening up Pro Tools. When I have a problem, I often resort to restarting both computers, and that usually fixes the problem for a little while, but not always. So what's the problem?