There was a Plex server update last week that broke the integration with HD Homerun tuners. I'm having the same problem as you. There was mention of it on Reddit last week. Maybe someone here from SD has a contact at Plex and can formally report this bug.

https://www.reddit.com/r/PleX/comments ...

I've only connected Digital Antenna to "Device ID*-0", the other one (Device ID*-1) I have Disabled.

*I'm not sure if it's ok to include my actual Device ID to this forum.

Hi everyone,

I recently received an older HDHomeRun DUAL (HDHR-EU) from a friend, and I’m trying to get it working properly.

Location: Australia
Network: UniFi (wired connection)

Setup details
- Installed the HDHomeRun Setup utility on my Windows 11 PC — it successfully detects both device inputs ...