same issue for me

Same issue for me. Fix please.

Same issue for me. Fix please.

same issue: unable to login: Authentication failed for <username>

Having the same authentication failure on Mac. The game appears to be up to date and the Magic site is reporting that the system is operational.

I can't log in and it keeps saying authentication failed when the internet works for everything else

Authentication failed on Ios and Mac

Authentication Failed on both my phone and pc

Having the same issue today

I have exactly the same problem. Notably I can log in on the same PC and internet connection with a different account, so it seems like some bug That only affects some accounts?

Same here. Authentication failed

Completely unable to log in on any device, repeated authentication failures. The Arena Status page says Arena is fully operational, which is either wrong and you need to update this more aggressively, or my account in particular is subject to some bug.