I have the latest remote utilities on three win 8.1 machines and 5 win 7 machines. All communicate with each other without issue accept one win 8.1 machine. All the machines get this same message when attempting to log on to this one machine.
I manually added the both the host and viewer to the windows firewall allowed programs with no change.
Edited:james demaris - Mar 03, 2015 9:12:04 am EST