Tô me it happened after I left a char idling ingame and went to do somethingelse. Usually it just logs out automatically, and it seemed so to me when I came back to check(it was in the channel), but then when I tried to log in again the error message appeared.

sry it my engl.
i did mean ur account ( not char) did not logg off correctly.

I can log onto the character and account fine but not the cdkey, so it's likely a bigger system issue

look here : https://eu.battle.net/support/fr/article/225993

make a case on battle.net with your account.

after blizzard restore your account, it's a BUG.

email from BLIZZARD ;

I'm sorry to hear that you had trouble logging into Diablo 2. I understand that it can be frustrating as a situation, it's never fun not being able to enjoy a game.

I looked on our side, we received some similar reports, it was reported to our developers, if something is confirmed, they can correct it on their side. For the moment, an intervention could be made on your account, which should allow you to reconnect again.

Hoping it won't happen again.

Bad news guys i have the error message again...this is going to be an on going problem

Take a pic of your CDs showing the CDkeys from your Discs, load them up and send them to Blizzard proving that your CDkeys are YOURS. They can identify your IP address as well.

oops sorry double post

This post was edited by songalle on Feb 10 2023 09:31am

From my ticket submission a week ago

good stuff

Just reset the effing server blizz.