I set up RU Host 6.10 on two users' computers. Under Internet -ID connection in settings, it shows status as "Ready for connection". However, the icon does not have a blue dot on it.
When I try connecting over my Viewer, it initially shows as being as online, and then it goes offline once I try clicking on it. For what it's worth, my viewer is an older version of RU (6.5 I believe). I'm not sure if that's a factor here.