HDHomerun Dual Channel Scan Fails

Plex DVR “sees” my HDHomerun Dual, but performing a channel scan returns no channels. It simply reverts back to the blinking 12:00 after scan reaches 100%. Scan using HDHomerun setup application returns 55 channels, most are watchable in VLC. Scan using Windows Media center finds same channels, with most being viewable.

Tuner: HDHomerun Dual (HDHR-US)
Tuner firmware: 20161117
Plex Server Version: 1.5.5.3634
Plex Server OS: Windows 7 Pro
Antenna: Clearstream 2V

Same issue here. If the HDHomerun dual is not supported, Plex should update their list of supported devices. Currently, all HDhomerun devices are listed as supported.

Dual is configured in my environment.

Tuner: HDHomerun Dual (HDHR-US)
Tuner firmware: 20161117
Plex Server Version: 1.7.3.3937
Plex Server OS: Windows 10
Antenna: Clearstream 2V