ZwocklYea sry that's what i meant. I thought that would essentially be the same thing.
Powerline adapters are garbage.
Perhaps you've added an electrically noisy appliance, or maybe a neighbor got one of those things as well and it's leaking into your powerline, or maybe you just have some random electrical interference from somewhere. There's a bunch of reasons why these things can start to suck even more than they're supposed to.
Try a real ethernet connection if you can, use 5Ghz wifi if you can't.