Before today, everything was fine (besides the regular stuttering problem that activision doesn't seems to care). I got a connection error (dc) when I was in wave 22 in zombies. After that I got 5 connection interrumpted from multiplayer so its imposible to play. I know that my connection it's fine and I found other people complaining about the issue, so what the hell ? do you read our complaints at least? So many bugs, problems, server issues and no fixes.
Playing on Americas Region.
Ryzen 5 1600
if possible bypass your router completly just to test you could have a faulty router. i was having issues myself and ended up my router had some firmware issues and it was new. try this to elminate hardwre issues.
turn antialising down to very low and turn shadows basically off this will fix the issue. if not it could be your hdd maxing out. i run all my games on ssds just to eliminate hdd studder