Since them it takes much longer to establish a connection to a server,
some clients can't connect to the server any more and some servers
simply don't show up any more on the query list.
It's simple to fix, just set the configuration variable sv_master1 to ef2master.activisionblizard.com instead of ef2master.activision.com . As far as we know this applies to all Games which have been published by Activision.