So this happens with only one of my connections and seems to happen intermittently. I figure that means there is an issue with the remote PC. I try to connect and have the hold screen with the world made up of ones and zeros for a long time, greater than 20 minutes. I close it out and on the screen in Viewer that shows all of my connections, this connection has a green icon and is under "Logged on". I click on it and it goes back to trying to connect but I don't get to see the remote screen. Could it be that a Microsoft update or the firewall is closing the port? Or is there something else to look at?