Not fixed, and won't be fixed in nearest future. By itself, only when online will drop, after everyone is fed up with waiting for normal game modes, balance and other stuff.
In other case either EA should invest in servers, or make most unpopular decision and disable XP progress completely on Portal.
Disabling XP progress in portal completely defeats the purpose of having it in the game. People play portal for custom rotations and an actual server browser. You take their ability to earn XP away from portal, they'll just stop playing the game altogether. Even on non-bot servers, you won't ever be able to get a server up as no one will want to play if they can't level up.
