They connect fine, can see things happening in the world, but just can’t do anything? And will they stay connected and getting good data until you shut it down? If it’s intermittent then you must be doing RPC correctly and the input mappings must be there. Does the host see the clients when they connect? Does the host see them moving but the clients don’t see themselves moving? Did you check the logs for anything unusual during the connection process? Some of us have seen an intermittent issue but it causes a disconnect, it doesn’t just stop accepting input.