@EA_Aljo @joeschiavone90
My bad - I don't have notifications turned on so my replies will normally be late.
I tried going back through threads but haven't been able to find the exact posts but here are a few where the fix was at least mentioned. You'll notice these are about Ones and Threes but I do remember people reporting their HUT and Online VS problems were also fixed.
https://answers.ea.com/t5/Bug-Reports/Ones-and-Threes-won-t-matchmake/td-p/8179116/page/2
https://www.reddit.com/r/EA_NHL/comments/d49cn0/onesthrees_eliminator/
Changing gamertags and in other instances changing from a custom avatar to a regular one seemed to fix most of their problems.
Be sure to check out post #101 and greater in https://answers.ea.com/t5/Bug-Reports/Post-your-FTRD-information-here-Failed-To-Retrieve-Data/td-p/8194835/page/11 -- Do you have anything connected to your system via usb? This was a problem at launch that had a weird solution so maybe try unplugging any of those (and/or try all 3 methods at once) and see if anything is better.