Plex Server Running on MacOS 15.3 Can't Find HDHomeRun Device

Server Version#: 1.41.3.9314-a0bfb8370
Player Version#: 4.141.0

Reposting here as General Discussions / livetv-dvr thread ran into a dead-end.

Is there any way to submit a issue ticket with the Plex technical staff?

ISSUE: Plex server v1.41.3.9314 can’t find HDHomeRun device.

NOTE: The Plex server is running on a Mac mini M1 running macOS Sequoia v15.3. Could this issue be related to the macOS?

BACKGROUND: Everything worked, for months, up until a couple of days ago. It was around that time that the Mac mini M1 did an OS update to 15.3. And so, I keep thinking the issue might have something to do with macOS Sequoia 15.3. Perhaps an OS API call changed in some way (additional parameters for security, I know Microsoft made changes like that from time-to-time impacting C++ code). And maybe Plex doesn’t support the new (now required) API call format?

ADDITIONAL DETAILS: I can see the HDHomeRun device on my router’s attached device list.

I can ping the HDHomeRun device using the IP address from my router.

I can watch antenna TV on the HDHomeRun device using the HDHomeRun app.

When I log into the Plex server as administrator and look at the account settings page and scroll down to the “Live TV & DVR” page, I see the error: “Device not found. Ensure your device is powered on and connected to your network”.

If I try to “Add Another Device”, I get error: “We couldn’t find any hardware we recognize, but will continue to look for available devices”.

If I try to “Enter its network address manually” I get the error: “There was a problem adding the device: 192.168.x.xxx”.

As suggested on the General Discussings / livetv-dvr thread, I’ve tried changing the HDHomeRun device’s IPv4 address to end in .127, I’ve tried powering everything down, deleting the DVR and setting it up again. But I get same errors as before.

Any ideas how to fix this issue?

Thanks again.

Your HDHomeRun and Mac need to be on the same network for the Mac app to find the HDHomeRun

ie. both device on 192.168.10.x

See Bug Report: Missing NSLocalNetworkUsageDescription Causes Persistent Prompting on macOS for a description of what is likely causing the problem.

You can probably get temporary relief by going into System Settings → Privacy and Security → Local Network, finding Plex Media Server, and ensuring it’s switched on for access. But it won’t stick, it’ll prompt again later.

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