Disconnect from server cant join instant

I enter Dry lake map, i didnt read the map probably but when i join in each monster i kill re spawn a few more, as i use Dominating blow. I was able to created over 80+ minions. It get a bit laggy but if i move away from it, it stop. I left the map to sell my loots den i got diconnected when i try to join in again. All portal failed to join instant because of disconnection. :( The only rare map i ever found and eff up

If the portals failed it's because the instance crashed, could be due to the amount of minions but it could be other things including map mods...if you could list them it may help support recreate the problem.