I’m having the same issue, it’s been years since I’ve played I’m simply just trying do campaign mode, why can’t it just be like before insert disk and play away, Battle.net was totally separate would appreciate any help.
Same issue here… It’s been month since I played SC2, today I reinstalled it and I’m getting the error about temporary server outage.
I tried logging out, other regions, restarting… nothing works 
Same here. EU player, can’t login EU, US or KR. Tried to reinstall, clear cache, beta battle.net etc. Nothing fixes the issue.
please fix the bugs in co op, versus and campaign where you cant gain any levels or get acheivements its been going on for 2 weeks now