Innersphere Mech Pak No Multiplayer?

I hope someone here can help out. I have MW4 vengeance, Black KNight and the Innersphere mech pak. Before installing the mech pak I was gaming online everyday in many different severs...now that I installed the mech pak..I pull up the connect page...connect and there are no servers available..nothing, nada, zilch.
I uninstalled the mech pak and was gtg, found all the servers again. re-installed the mech pak...poof, servers gone...can anyone help? there does not seem to be any available help anywhere on this.


thanks
Hannibul