I'm sure I'm missing something simple in my initial setup of Remote Utilities. Using version 184.108.40.206.
Have GMS setup with host on the same Windows 8.1 workstation and Dynamic Domain Service which works fine with both FTP connections and local web hosting etc. RU host is started. Ports on Viewer and Host set to 5655. Ports are open on router (5655 and 5670) and Windows Firewall indicates that apps are not blocked. In the Viewer on a remote Windows 8.1 machine I have the remote connection listed under "other connections" with OFFLINE showing on the thumbnail and a blue dot in the upper right corner. Double clicking the thumb does not start a remote session. The thumb changes to || briefly and then back to OFFLINE.
I'm now getting quite frustrated after working for multiple hours on Remote Utilities setup. Love the features of RU. Just can't get connected. [censored] has left us high and dry. Jump Desktop with Tight VNC doesn't seem to support file transfer.