Papampi, can you help me out. I'm not sure where to start really but one of my rigs keeps getting a GPU Utilization is too low: restarting 3main error ever so often and it constantly says "connection closed by server r:0". I've tried different pools and different coins but seem to have the same issue. I've also reformatted with a fresh copy of nvOC 19-2.0 but still have issues. Thanks man!
I think its a dstm problem happens to some of my rigs from time to time too, think I saw some talks about it in its thread, try ewbf or bminer, see if they fix it or not.
In the mean time you can post your problem in dstm thread, see how they can help.