HDHomerun Flex 4K worked fine, suddenly disappeared and Plex can't find it now

Live TV & DVR
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1

Server Version#: 1.42.2.10156. (on MacOS 15.7.1/MacMini 2018 (intel))
Player Version#: 4.147.1
Tuner Make/Model: HDHomeRun Flex 4K

Things were recording just fine, then a couple of days ago, PMS lost track of the HDHomerun Flex 4K. Last time this happened, I set a static IP on the HDHR, deleted the DVR and plex rediscovered it with no issue. This time I get the dreaded “We couldn’t find any hardware we recognize, but will continue to look for available devices”. I tried it with the static IP as well. No luck there either.

I can watch using the HDHomerun Mac application with no issues.
It’s discoverable as follows:

jljoslin@Macmini81-2 ~ % hdhomerun_config discover

hdhomerun device 10A6FC12 found at 10.0.1.229

hdhomerun device 10A6FC12 found at fe80::218:ddff:fe0a:6fc1%7

No idea why/how PMS just forgets a machine that was successfully attached and in use. I’m at a loss here. No idea what to do here. Any assistance/suggestions greatly appreciated?

2

Forgot to include the log files. I perused them and honestly didn’t see anything of interest.

Plex Media Server Logs_2025-10-29_23-26-38.zip (2.6 MB)

3

Sorry your having problems - same problem reoccurring many times across platforms that no one wants to resolve

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4

Make sure the firmware updated on the Flex 4K and then power cycle it.

Need to disable one of these or bond them into one. Plex has issues when you use two adapters on the same segment improperly.

Network interfaces:
 * 1 lo0 (127.0.0.1) (00-00-00-00-00-00) (loopback: 1)
 * 4 en0 (10.0.1.239) (F0-18-98-F0-23-74) (loopback: 0)
 * 7 en1 (10.0.1.71) (C6-FF-3C-E3-80-6B) (loopback: 0)

Check your database backups are occurring every 3 days, you may have DB corruption.

6

Better explanation:

10.0.1.71 is the WIFI DHCP address of the mac mini

10.0.1.239 is the hardwired static IP address of the mac mini.

lo0 can’t really be touched since that’s the local host.

The HDFX is assigned 10.0.1.229.

I’ve tried this with ethernet disabled and separately with wifi disabled. Doesn’t recognize the HDFX in either case or with both enabled. All of the addresses are on the same subnet.

I’ve had the two interfaces on the MAC enabled for, well, years. macOS complains when you don’t have wifi turned on.

7

I tried to get a more recent set of logs and downloading the logs actually gives me: 500 Internal Server Error. That’s new.

8

500 usually means the server is busy.

Get your Plex token: https://support.plex.tv/articles/204059436-finding-an-authentication-token-x-plex-token/

curl -L 'http://{ipofserver}:32400/media/grabbers/devices' -H 'X-Plex-Token: {Plex Token}'

This will give you a list of your tuners, look for key=“x”, enter x below.

curl -L -X DELETE 'http://{ipofserver}:32400/media/grabbers/devices/x' -H 'X-Plex-Token: {Plex Token}'

Stop Plex and change into the Databases directory.

Delete the epg files start with tv.plex.providers*

Start Plex and create your DVR.

9

I’ll give that a shot. In the meantime, here’s more recent longs (with wifi disabled).

Plex Media Server Logs_2025-10-31_12-07-52.zip (2.9 MB)

10

Got this from the first curl command…

==========================================

jljoslin@Macmini81-1 Data % curl -L ‘http://10.0.1.239:32400/media/grabbers/devices’ -H ‘X-Plex-Token: ’

<?xml version="1.0" encoding="UTF-8"?>

============================

I wanted to find the tv.plex.providers files. Searched the entire Mac and I find no files with that prefix. I don’t see a directory specifically named “Database”.

I haven’t done the curl delete command as yet.

11

In finder, click GO → Go to folder and put this in:
~/Library/Application Support/Plex/Plex Media Server/Plug-in Support/Databases

That should take you to the data base folder.

12

According to the logs the HDHomerun is no longer configured but you are getting “no route to Host” messages.

Did you have a VPN installed? It’s either that or a problem with the firewall. At this point you need someone with more specific Mac knowledge.

13

Thanks. This is all I get. BTW, there is no Plex directory, just Plex Media Server.

com.plexapp.dlna.db

com.plexapp.dlna.db-shm

com.plexapp.dlna.db-wal

com.plexapp.plugins.library.blobs.db

com.plexapp.plugins.library.blobs.db-2025-10-24

com.plexapp.plugins.library.blobs.db-2025-10-27

com.plexapp.plugins.library.blobs.db-2025-10-30

com.plexapp.plugins.library.blobs.db-2025-11-02

com.plexapp.plugins.library.blobs.db-shm

com.plexapp.plugins.library.blobs.db-wal

com.plexapp.plugins.library.db

com.plexapp.plugins.library.db-2025-10-24

com.plexapp.plugins.library.db-2025-10-27

com.plexapp.plugins.library.db-2025-10-30

com.plexapp.plugins.library.db-2025-11-02

com.plexapp.plugins.library.db-shm

com.plexapp.plugins.library.db-wal

There’s no firewall configured on the Mac mini or on the router.

14

Can you tell me which log that appears in?

I found it in the Plex Media Server.log file.

Oct 31, 2025 12:07:44.703 [0x7000086db000] ERROR - Error broadcasting message: send_to: No route to host [system:65 at /System/Volumes/Data/data/actions-runner/_work/plex-media-server/plex-media-server/build/dependencies/plex-media-server/standard-x86_64-apple-darwin-macos/boost/include/boost/asio/detail/reactive_socket_service.hpp:261]

That’s referring to a directory that doesn’t exist below

/System/Volumes/Data/