Why cant tonight be the good patch dammit.
So I finally was about to reach the end of the cave with the 2nd blood in act 2, I had basically found a nice little area to kite the impossible blue packs into so I could die there and then skip them and clear to the end.
Right at the end I get one more rare pack, easy, start kiting them back to my nook with 2 blue elite packs who were looking for 1 more friend to hang with, I get the new pack there, die, BAM disconnected, back to the start of the cave, all new mobs, level 1.
I literally spent 2 hrs dying, dying and dying some more, resetting the cave over and over . Then to have finally a perfect cave run, well if you call perfect hiding elite packs in a corner so you could continue and BAM F'ing disconnect from the server.