I have the hd homerun (SiliconDust HDHomeRun Dual HDHR3-US HD Digital Network Attached TV Tuner Device ) and I can't get any channels to show up in jriver. First of all, I did have this working for the last year with version 19/20 on another computer. About a month ago I had trouble where it would start to record but stop and remove the record file. I couldn't figure it out and ended up uninstalling it. I am on a different computer with a fresh install of windows 8.1 with all updates and jriver meida center 20. On wired network with windows defender/firewall disabled for testing. Cable company is Service Electric Allentown, PA. The HDHomerun program quickly found all channels and each one opens quickly and displays clearly.
I tried as much as I could think of; in the hdhomerun setup I tried selecting jriver, other atsc/quam, other registery, and each time I did, in jriver I did a slow scan of most options; Digital -> and either atsc or qam and each of the qam frequencies. I then tried this on a laptop computer and used the wireless connection with no luck.
I realize that only so much help can be offered, but any suggestions are appreciated. Below is a log of a channel scan I just did incase it helps.