Hello Tanner,
Thank you for your message.
The yellow monitor displayed on the connection icon means that the remote Host is accessible, but you are not logged on it yet.
FWIW, the portable viewer does work, so I'v been using that in the mean time.
Could you please clarify if you connect to the same Hosts using the same credentials and connection types? Also, please clarify if you launch the portable Viewer on the same machine as the Viewer that the issue occurred in?
If this is the case, the issue might have occurred if the Viewer configuration file (config_4.xml) somehow was corrupted or deleted. Please, try deleting the config_4.xml file which you may find in the %appdata%\Remote Utilities Files\ folder. This will reset the Viewer settings/options. Your address books won't be affected by this action.
Let me know if the issue persists.