I'm having the same exact problem.  Starting 3 days ago I've been seeing wierd lag every 2-3 minutes.  And then it seem to randomly decide to disconnect.  It's gotten to the point where I am disconnecting every 5 - 10 minutes for no apparent reason.
 
	I don't have any issues with my internet connection, everything else is working fine.  All of this seems to coincide with the last update.