Same Issue, can log in under one name but not the other since Friday. Support agent not helpful at all...

Getting this problem as well. Gonna miss out on a daily -.-

I'm getting this problem again now.

Please fix this soon

Can't sign in, twice this week!

Same here. Every day several times when trying to start the game (especially if I had played already) It just won't log in.

I can't log in.

No error at all, it just simply wont log in...

On PC Desktop NVIDIA GeForce Graphics Card GTX 1050i, Authentication Fail, thought new patch would fix it, was wrong

Same here. Unable to log in. Happened when internet got interrupted during the update.

Locked out

Same error

Cant log in

Same error "attach failed to drop other attach"

Unable to log in, getting “attach failed to drop other attach”. Deleted app and downloaded again, same thing.

update in play store. will fix it

Can’t login. Have great internet. Full bars. I’ve spent lots of money on this game and would like to play it.

Connection lost/unable to login on macOS, after the server update, with an old version of MTG Arena.

It seems to work fine after updating MTG Arena - maybe the error message could tell people to update.

connection lost android

Connection lost/unable to loggin on Android.