Login error: Could not Authenticate with Battle.Net

After update to recent new patch, game keeps crashing and rebooting. Read couple of posts said it would work if reinstalled the app. After reinstall the app, it shows Battle.Net Authentication Error: Could not Authenticate with Battle.Net. I am using Ipad pro 4 newest verision.

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I believe this just began to affect my account as well. Game was working fine this morning, and then I logged out in the middle of a battle to go to the airport. Now can’t log back in, keep receiving the “authentication error” report.

Blizzard has really biffed it over the past 4 days… not impressed

I amend this statement - it says “login process failed, if this persists check the support site.”

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Had this issue, reinstalled game and back up and running. I think that update corrupted my install somehow, had no issues before.

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Got the problem since today.
Im not able to login.
Im using iphone to play.

Same here, cant login, stays at 45% then reboots

Everything worked fine until I decided to “secure” my “guest” account by installing battle.net on my phone due to these shenanigans I’ve been hearing about. Shoulda done nothing instead… The first time I opened the game, it asked which account I want to use. I clicked on “guest” (because the bnet one was 0 progress). It’s now stuck in an infinite login loop. I can’t play the game, and I can’t link accounts, and I’m afraid to reinstall the game for the risk of losing all progress. If @Support can confirm that it’s ok to reinstall because “guest” is linked to the Google account, I’ll do that.

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Reinstalling worked for me. Hit settings and login once it gets to the tutorial.

Login error here after update.

Think i may have lost all progress since encountering the issue of logging in and failing to authenticate at 45%.
Reinstalled the game and when I logged in to my blizzard account the data was not recovered