The ATM3R server really needs to someone to look at it and see what's going on. The other day thecaligarmo and I had issues where our AE2 systems inexplicably stopped showing items in any terminal until the server was restarted. This happened to me on two occasions.
Yesterday and Today both Mettah and I have experienced bouts of horrendous lag and just now I got DCed while sitting in my base doing nothing.
I have disconnected my ore miners. Turned off my sewers, and cut power to my ore processing to see if that was causing the issue. All I have running right now is some industrial alvearys, an assortment of crops and harvesters and big reactors inside compact machines.