Same issue here. I was able to play without issues since release, then last night that error started popping up and will not go away despite trying many attempted fixes.
Details:
Win10
GeForce GTX 1080Ti
Driver 581.42
Happening since last night GMT-4. (no system changes)
Getting same error(s) as OP.
On Main menu, when clicking a game mode in Multiplayer (such as Conquest), it will crash after ~1s, always.
Note, training grounds seems to work without issue, but can't play the game otherwise.
me and you have same spec gpu try flushing your dns it worked for me
