See also https://www.chess.com/forum/view/general/server-disconnects-me-and-i-lose-on-time
I asked for a member in that thread to provide proof that more members are experiencing random server disconnects. And he delivered:
This is irrelevant. If the issue was server-side, it wouldn't be "more members", it would be all.
how to fix disconnect/lag issues
why do I have trouble with chess.com when other sites work fine?