If anyone is still tracking this thread…? I’m experiencing the same issue…{sigh}
With a TV USB stick (model PCTV 73e) plugged directly into the Synology NAS (and recognised by the NAS DSM info centre). If I go to detect the USB stick using Plex the setup gets stuck at detection page with an Orange spinning wheel (any the option to add the IP of a TV HDhomerun box), the detection never completes (edit: actually with nothing plugged into the NAS the detection never completes either).
What’s odd is I’d previously added the TV USB tunner via Plex with no issues (my tunner is not formally supported, but did work as it is community supported), the only reason why I’m trying to reinstall is because the tunner just stopped working after the Plex update in June '19.
Tried uninstalling and reinstall the who of Plex, clearing the cache, rebooting, restarting, etc…
I suspect the issue is permissions related, as the local Plex user account on the Synology is no longer a full admin, but I’ve yet to find a fix ! (see here for further info Plex Media Server security changes for Synology users)
Anyone one else battling this? it’s dam annoying as the DVR support was the only reason I paid for lifetime membership.
I’m guess the next step is to uninstall again and reinstall an earlier spk version.
LostWanderer