I will try to explain best I can .
I am sorry for my english .
I use Comodo firewall latest version and I have Windows XP SP3 . I have Avast antivirus .
I play a game called Pristontale , And after I log out of the game , and try to back to the game I get : "Account is already logged in " . i have to wait like 30 seconds and then just i can log in again.
After disbaling Comodo firewall , I don’t have this bug more and I can log off and log in without the "Account is already logged in " .