Every once in a while we have some computers that are bad sports in general, but there is one major thing to check on. I keep finding that Swarm gives itself the wrong firewall settings. Open your firewall settings, go to where you allow apps to come through the firewall, and make sure that Swarm and UE are allowed on Private networks. Sometimes they get stuck to only allow on Public networks for some reason. That is the easiest fix we’ve found.