For those with problems with disconnects. It generally only disconnects breifly on coin change, part of the stratum implementation here for multiple coins to be mined. If  you use cgminer version 3.5.0 or earlier the switch back to mining happens much quicker. I have been mining here for quite a while and this issue keeps coming up, both in the forums and the IRC channel, but almost always comes back to version of cgminer.