Failed to authenticate

Hey there,

So to clarify, the warning is about attempting to link other same platform console profiles to the same battle.net account. You should be able to unlink and relink the same console profile to the same battle.net account. However, I wouldn’t go there just yet as if something goes wrong and you inadvertently get the cooldown, It cannot be bypassed, reset or removed at all, by anyone. So while it is very unlikely to happen, we may want to try everything else we can first just to be as safe as possible.

Since this appears to work on PC, it is safe to say it is not any sort of battle.net account restriction. It could be something specific restriction wise to the switch console profile. So check things like penalties, parental controls etc… to make sure nothing like that is interfering.

You can try logging out of your account on the switch profile and relogging.

You can try resetting your battle.net account password and see if that forces an authentication update to the switch login for the game.

If you have no offline characters, you can also uninstall, clear the cached data for the game and reinstall the game.

Finally you can factory reset the system. Please make sure you have any account login information for switch or any games you play memorized or safely saved somewhere so you can properly log back into everything once the system is reset.

If the issue persists beyond all of that then you should be fine to go ahead and unlink/relink the console to your battle.net account. Just be absolutely sure you are relinking the same account you are removing.