I still really don't get it - whenever I want to go to the SharePoint Chat, I keep getting this message:
Your login data seems too old; please log in to any StackExchange site, possibly logging out before.
Then I will click on the http://chat.stackexchange.com/help (GlobalAuth test) and it will always give me perfect result - meaning no errors as all are ok.
If logging in still fails, please visit the GlobalAuth test & help page to check for common problems.
I changed my internet browser to Chrome (which was suggested by Vedran) but seems I still could not get to the chatroom.
May I ask if I am missing some details / steps here?