My warning that the client will freeze and I will get handed my beautiful grey robes, is only when I get into the Ant-hives, when the towns are also active. I can see lags in there, and at first bouts I try to get out, since lagging in there means death and loss of time. My client does drop out completely when not fighting, and in the house, after 2-4 minutes, from time to time. I suspect it is many things factoring into this drop out, including # users, density of spawn, the anti-cheat new code that excludes "other clients", ISP related bandwidth drop, due to the neighbours all on line on Saturday night, and maybe some specific things about your system, like malware trying to copy your personal data and send it to a criminal? I now use an old Win 10 machine have increased the cores to 8 by using windows system modify, and only occasionally have issues.