hdhomerun doesn't find channels

I just installed both Kodi (Isengard) and HDhomerun. I have an HDhomerun Connect and upgraded to the latest firmware. When I try to activate (or install) HDhomerun as a video add-on it quickly states that it couldn't find any channels. HDhomerun viewer works and finds channels on Windows, but not on Kodi. Any help would be greatly appreciated.

My Connect is a model HDHR3-US. Am I in trouble?