for the record, HDHomerun Prime here on Win7 PMS and I do see the same issue. For me it usually happens on h264 streams (in my market, Comcast broadcasts the regular channels like NBC, CBS etc in MPEG2VIDEO and the rest in h264).
Usually reboot of PMS and HDHR fixes it for an unknown amount of time…
Myriad issues reported on the forums with Live TV/DVR indicate we are paying to beta test this software for Plex.
It’s been running better lately - I thought I had observed that a later release of the PMS had fixed the issue of leaving behind deleted DVR entries.
The next time I have to delete the DVR, I’ll try to get you the information you request - but I can’t say when that might be.
Tell you what, I’ll trade your kind attention on this issue to a different one - Shield playing some channels back in the wrong aspect ratio.
I’m having the same problem. I’m completely unable to watch live TV on Plex, even though it works just fine through the WinTV8 application that came with my tuner.
Is there any further update from Plex? Is there anything you need users to provide, and if so how?
Thanks for the logs. I see a 10 second timeout on starting to tune a channel
Dec 12, 2018 06:46:23.539 [0x7fe306da1700] DEBUG - DVR:Segmenter: Creating a new recorder for http://10.32.5.63:5004/auto/v1113.
Dec 12, 2018 06:46:23.558 [0x7fe306da1700] DEBUG - DVR:Grabber: Allocated a tuner (2 left)
Dec 12, 2018 06:46:33.620 [0x7fe306da1700] DEBUG - TranscodeSession: timed out waiting to find duration for live session
Dec 12, 2018 06:46:33.620 [0x7fe306da1700] DEBUG - Streaming Resource: Terminated session 0x7fe2e8c5b5e0:1a9dab27-d808-4a40-971d-6c5f40f5b339 with reason Recording failed. Please check your tuner or antenna.
Dec 12, 2018 06:46:33.621 [0x7fe306da1700] ERROR - DVR:Recorder: Error 16 (Recording failed. Please check your tuner or antenna.) starting the record, shutting things down.
The timeouts were increased in versions 1.14.1.5487 and 1.14.1.5488 which was released earlier this week.
See Release Notice for 1.14.1.5487 beta
Please update to 1.14.1.5488 and if there are any further issues please provide fresh logs with details of the problem
Oh thank God, a Team Member is working on fixing the DVR bug. Thank you.
Well, on the Nvidia SHIELD (server) the Happauge Win-TV Dual-HD tuners stopped working, meaning that both live TV and recordings don’t work. As someone with that issue I’d love for that to be addressed, preferably today as I’ve got recordings lined up for tonight 
This poster found the error issue in their logs:
Dec 14, 2018 08:28:09.750 [7217] WARN - [W] onetv_factory::DeviceGetListEx. libusb_init returned an error -99
Dec 14, 2018 08:28:09.750 [7217] DEBUG - [I] file_tuner::get_stream_file. File /data/user/0/com.plexapp.mediaserver.smb/Resources/Tuner/Private/devices/dvb/file/drv_file.ini does not exist
There’s several threads of people complaining about the bug and asking for it to be fixed. If you guys could take care of that real quick that would be awesome.
Thanks in advance!
what am i looking for in the logs ? At what time ? what went wrong?
Logs cover Dec 12, 2018 00:20:36 to Dec 12, 2018 09:46:46
The only recording for this period was potentially
Jennifer Lopez; Robert Klein; J Balvin airing on channel 3 at 2018-12-11 23:34:00
but as it was already in progress having started beforehand and you do not have the allow partial recording setting, it got skipped.
Was there any other recording that failed ? when ?
Dec 12, 2018 00:20:42.829 [0x7fb49abfe700] DEBUG - DVR:Schedule: Trying airing at 2018-12-11 23:34:00 on channel 4.1.
Dec 12, 2018 00:20:42.829 [0x7fb49abfe700] DEBUG - DVR:Schedule: Device 0 tuner 0 scheduled recording between 2018-12-11 23:34:00 and 2018-12-12 00:37:00 on channel 4.1.
Dec 12, 2018 00:20:42.829 [0x7fb49abfe700] DEBUG - DVR:Grabber: Airing was in progress, and we don't want partials, skipping.
I do not have logs for 23:34 Dec 11 so cannot tell what happened then and if it was scheduled to record then
See my post above this. I made mistake and quoted wrong post first
The latest fixes are in 1.14.1.5488
If you are still having problems, please ensure debug logging is enabled and attach zipped server logs indicating time of the error
See
https://support.plex.tv/articles/201643703-reporting-issues-with-plex-media-server/
https://support.plex.tv/articles/200250417-plex-media-server-log-files/
Hey sa2000, appreciate you looking into it.
I cycle the logs fairly quickly saving space, logs that I sent over don’t appear like they are relevant for the issues I was experiencing at that time.
Since then I’ve actually changed over to the beta channel to get releases sooner and it appears that version 1.14.1+ is working much better than anticipated. I’ll continue to monitor and send over relative logs when they are due.
Channels are tuning properly, and the DVR functionality it working as expected. Scanning is still quirky - ended up modifying the db, cloning the greater number of scanned channels to the second tuner (WinTV-QuadHQ comes up as 2x 2 tuner cards).
So, 
so far for me.
Installed the latest release and verified that the increased timeout has resolved the symptoms that I was seeing. Thanks so much!!!
Hi sa2000,
Is there any way for me to increase the timeout further, a setting somewhere perhaps? I’m still facing this issue, even on 1.14.1.5488.
My Plex server is outside of my local network, so I would hope that even more timeout allowance would allow it enough time to communicate with my home network, where my HDHomeRun lives.
Thanks!
Hello sa2000,
Like many others I am having a ton of trouble with the LiveTV and DVR functions. I am to the point where when I reboot my whole computer (plex server) I can get the LiveTV to work for one show one time before it gives the all too familiar “unable to tune”. Attached are my logs from the most recent run of this. Any assistance you guys can give would be great as this was the primary reason I bought the premium lifetime package.
WooddersPlex Media Server Logs_2018-12-25_11-44-33.zip (1.6 MB)
I’m getting the same errors as everyone here. I just got a new (Hauppauge WinTv- quadHD PCI TV Tuner Card) and a Mohu Leaf 30 Antenna for Christmas. Setup was crazy easy. But after a few hours I keep getting: Playback Error (Could not tune channel. Please check your tuner or antenna.) I’m getting this error on PC, Android, Roku, and Roku beta channel. Occasionally one channel will come in for a few mins. Deleting the DVR and adding the tunners back has fixed the issue for a few hours but then the error again. I’m running version 1.14.1.5488.
The main reason I wanted this setup was to drop YouTube TV. but not i’m having doubts. It also blows that he Live Grid Guide isn’t available for mobile (Android) or for the official Roku app (works on the beta, sometimes).
Anyone have an ideas on how to fix this?
Server Logs are attached. Error starts at 0951
Thanks, Merry Christmas
I too am having this same problem. My server is the latest version 1.14.1.5488 and recording almost never work although sometimes they work partially and sometimes I can watch and not record, really a disappointing and frustrating situation.
I have been reading the forums in the hope of figuring this out on my own but have thrown in the towel and am posting my information here. Not exactly sure what is needed other than the log file so please let me know specifically what is needed if there isn’t enough information that I have provided.
I am using two each of two different model HDHomeRun tuners (Dual (firmware 20170930) and Connect (Firmware 20180817) models) but Plex doesn’t tell me which one it is trying to use so not sure if there is a tuner problem or not. In the meantime, I have stopped using Plex and have gone back to Windows Media Center which has been rock solid for years with these tunes so this appears to be a problem with Plex and NOT a signal/hardware/network/server issue.
Plex Media Server Logs_2019-01-02_12-35-18.zip (3.5 MB)
Regards
@griffths these are failing when data is being read and written to “AppData\Local\Plex Media Server\Cache\Transcode\Sessions” . It’s probably a Windows update that has messed with your c:\Users permissions.
I have the same Tuners working with Plex 1.14.1.5488 on Debian so I reasonably confident it isn’t the Plex software alone causing the issue.
@ Tiebierius Would you please teach me how to fish as it were and point me to the particular log file/entry that shows this. I am new to all of this and have gotten lost browsing the log files for any clue as to why my recording/live viewing is intermittent.
Also, what would it work sometimes and not others and certain channels and not others? Seems very random to me.
Thanks!
Is this still an issue? If it is, would like to see the logs from version 1.14.1.5488 and also from the tvOS Plex App.
See https://support.plex.tv/articles/212639598-apple-tv-logs/
Thank you for the logs.
There are a number of issues showing and some are consequential following from earlier failures.
The logs show the following
25th December 11:34 Plex Web chrome session tuning channel 7.1 and streamed ok for about 20 seconds - at which point you stopped it at the Plex Web end
About 50 seconds later the channel was tuned again from the Plex roku app. Whilst tuning completed, the transcoder did not get packets to pass to the roku app and it failed
At this point the tuner was not properly closed down and so subsequent tune requests were failed immediately as can be seen from Plex Web attempt to tune the channel at 7.1
The server was restarted and a tune for the channel at 11:41 timed out after 25 seconds,
The issue of the tuner not being properly closed down after an error is being resolved and a fix will make it way through the release cycle.
The other issues of timeouts or failure to get the packets from the tuner are considered to be tuner issues. it would be useful to establish if after timeouts like what happened at 11:41 a tune would be successful using the Haupauge app - so long as you can tell it is not the immediate tune failure case due to Plex not closing down the tuner correctly.
I usually just open up the “Plex Media Server.log” in notepad and search for error, get the process id that is in [####] and use that to follow what is going on.
From your files you have HW Transcoding turned on but it isn’t activating and unless you have a discrete video card the Intel GPU in your Sandy Bridge processor isn’t that great.
There is a live session that starts at Jan 01, 2019 21:55:00.550 [3796] where you start to watch “WGN News at Ten”. It begins recording writing to disk but when it tries to create the stream out to the client by reading the same segment off of disk it fails with HTTP 404 error (file not found).
From some of the replies it sounds like they are close to solving some of the tuning issues, while frustrating it would probably be best to wait for this fix to come out and go from there rather than poking round Windows Updates.
