CatLight v2.34.2 Suddenly Stopped Loading Dashboard/Build Updates

On Monday, October 18th 2021, I noticed that my CatLight tool was no longer showing the dashboard or updating build statuses.

We use only a single connection (TFS), and I have repeatedly logged into TFS and checked build agents, etc, and CatLight is the only place not working.

After sitting for about 5 minutes waiting for the dashboard to load, the gears go away, and I get the message "Offline A task was canceled." in the main window.