Should be working fine :p They fixed that in about a day haven't seen it since , If you ever see that just try logging in again (that's what I did and it worked for me I pressed that button like a crazy :DDD ).
It's a common limitation of Networking and has nothing to do with the game itself, it has to do with Server Hardware and software and will happen to any game.
Community is growing fast (on any network) in order to avoid server crash you have to throttle the influx of connections at first unless you want like Destiny 2 ... everyone on at launch server dead for days ehehehe OwO
