im living this exact same life right now, i thought it was my hardware that was causing this issue and my system needed an update so i went and got a whole new mobo, cpu and ram. did not change a thing. at this point its definitly a server side issue, either with their account authentication or their anticheat. hopefully they fix this in the patch tomorrow but who knows.
this issue aside, I am really enjoying the multiplayer gameplay when i get to play its just frustrating to get kicked out of a game when you are just getting into it.