Separate names with a comma.
Tried it, same thing, same dialog pops up, no go.
Launcher is 22.214.171.124
Spartan is 126.96.36.19948
xlive is 1.0.2014
no go, I'm still having the same issue.
Been unable to login since around mid April 2022, was fine before.
At the game window after i click Play
"Logging in connecting to game...