I started having the same problem after purchasing a new television. This only happens when playing 2142 never could log in. Battlefield V had no issues with login.
After some investigating, I realized the HDMI connection from the XBOX X to my TV was plugged into the wrong slot. It was connected to the HDMI eARC slot. I switched it to the HDMI 4 slot and the error stopped immediately.
Sorry but switching the earc hdmi would have zero effect on a server error. That makes no sense. What you must have experienced must have been coincidental.
