EPG downloads initially, but is empty the following day - POST 1.9.6.4401 upgrade

It seems since the most recent update to 1.9.6.4401 the EPG has started playing up. I noticed that my EPG was suddenly empty the other day, so I did a refresh and it all returned. However the following day it was empty again, so I restarted the plex services and then did another manual refresh, once again the data returned. But then again when I checked this morning it is empty again.

Rather frustrating as it means none of my scheduled recordings work now. Has anyone else struck a similar issue with this version? Any help would be appreciated.

Yes. Although both of my server installations don’t recover the EPG at all (so far). I dropped one Plex server back one rev, and it didn’t make the EPG show up. Still MIA.

Note I’ve tested my tuners, they all work. They also show that channels were discovered in Plex DVR setup screen, but refreshing the EPG runs, but downloads 0 items.

EPG source problem?

Update: I down-revved to the 9/5/2017 (v1834235) code and the EPG download still does not find any “airings” (I called them items above).

I had to delete my dvr and create a new one using a neighboring zip code. Only after that was I able to get data again. It took a few times guessing which zip code to use. I tried 3 of them which I found had incomplete channel lists and only on my 4th try did I find a complete list.

note: thankfully deleting the dvr did not remove my list of programs to record.

Mine was empty today and I had to refresh it to get my recording schedule back. Luckily I saw it before all of my recording were to start today. PMS 1.9.6.4401 on Ubuntu 16.04.3 LTS.

Update 2 to my post above.

I’ve found that just deleting a tuner device in the DVR and adding it back made my recordings show up. Apparently, the channels in each tuner, while displaying fine in Plex, don’t properly match up with the channels in the EPG, thus, empty EPG since no match on any tuners’ channels. I have multiple tuner boxes (2 tuners per box) on each of 2 Plex servers.

Since I had down graded each Plex server, I then brought one of my servers back up to the latest rev (1964401). This server only had one tuner box (2 tuners) deleted added. The EPG/Recordings still show good. I am going to delete/add back the other two tuner boxes (4 more tuners), just to be sure there are no glictches during tuner selection for multiple overlapping simultaneous recordings. I’m going to leave my wife’s Plex server down rev. She has 5 tuner boxes (10 tuners total). All of those have been deleted/added back.

Now, based on a lot of folks reporting the EPG/recordings showing up and disappearing (not just in this thread), I need to watch for signs that the channels in my Silicon Dust tuners no longer map properly to the channels in the EPG (no matches, no program guide displayed, no recordings). If it is dynamically changing, then this will be a tougher problem to isolate.

From my perspective, it looks like the upgrade I did this morning to 1964401 somehow mangled the channel mappings between the tuners and the EPG, resulting in no tuners matching any channels in EPG (data corruption??, API’s changed?)

Final note. I believe that it will be possible that I will have to delete/add back all my tuners once a fix is released to make everybody having this problem good. Interesting there aren’t more forum entries on this…must not be affecting all users/scenarios.

Good luck all. I’ve been doing the Plex Pass DVR thang’ for about a year now (started during late beta). This is the 1st problem I’ve felt a need to get involved with. I’m impressed with the frequent releases and rate of feature addition in this product. Also very pleased with the relatively small number of problems (my perspective). Just an ex-developer’s opinion. Kudos to da’ Plex People! :slight_smile:

I’ll post back here later on whether the channel mappings remain stable over time.

P.S.-I did not have to delete the whole DVR. Just devices (each a unique IP addr) under the DVR.

For me it wasn’t as much a mapping issue as it was a lack of accurate data. The various guides available simply weren’t populating the right list of channels based on zip code. Attached screenshot of the small list of channels being incorrectly provided (and they weren’t even close to accurate). That’s why changing zip code worked for me.

Thanks for the feedback all. Mine seems to have stabilised all by itself now. I haven’t made any changes but for the last 24-36 hours all my recordings have been working and the Program Guide has data.

Spoke too soon, I had a look again today and they were all gone. After manually refreshing they all returned, but at this point in time it seems as though the issue is still there.

I’ve been stable for two days now. Deleting/adding back each tuner in the DVR seems to have corrected the mappings of selected channels in the tuners with channels listed in the guide, so that matches occur and EPG airings show up.

I haven’t seen the “sometimes EPG is there, sometimes not” problem. Maybe I have a different issue. While my problem occurred the day I upgraded (see above), I can’t say that correlation proves a cause and affect.

Thanks Don - I have decided to try deleting the DVR and readding it as well. I’ll see how that goes.

I can say that since I re-created the dvr with a neighboring zip code I haven’t seen any instability in guide data but I will keep a closer eye on it for the next couple of days.

Well, no such luck for me. I still have the same issue. It is becoming very frustrating now, no confidence in getting anything recorded. I have just applied the most recent update 1.9.6.4429, but according to the Fixes section I don’t think it’s going to help :frowning:

My program guide/recording schedules have been stable for 7 days now showing all EPG entries, after deleting/re-adding each tuner and it’s channel lineup. I upgraded again this morning to 1.9.6.4429. Confirming here that I still have never seen the EPG show up some times, and not other times.

DamonCoursey…just a suggestion…I’d confirm the operation of your tuners. It is possible that your tuners are loosing channels intermittently. An extreme example is a bad storm where your digital antenna quits seeing the OTC broadcast, resulting in each tuner marking the channels in its channel lineup as “down”. This would result in no EPG airings being displayed as the filter “available tuner-channel=EPG-channel” would return a list of zero “airings” (I’m guessing how Plex EPG logic works). The trick will be to catch the tuners with unavailable channels (e.g. terrible electrical interference on your coax runs when you turn on a flourescent light fixture) at a time when Plex Server is updating the program guide.

Damon, I’m a retired developer and network engineer. I’d be happy to provide any suggestions I can if you can describe your antenna/coax runs/tuner products and general configuration. I’d also like to hear about your ethernet cable runs to the tuners, if those take a different route to their switch/router, just in case there could be electrical interference on the cable(s) carrying tuner traffic.

I might be able to help, since my network experience includes quality audio/video technologies (e.g. QoS, capacity, etc.). My development experience does not include audio/video coding. However, I have been involved in many beta’s where audio and or video apps were being rolled out (e.g. National and International VoIP). Oh…I’m also passionate about my home “IPTV” based system (all media types actually) and I am pleased with Plex as the core of my “Generation 2” system design.

Lemme’ know!?!

Thanks Don - it doesn’t feel like an issue with the digital tuner. I have a decent aerial up on the roof and the coax cable from this is split to a tv and a freeview set top box. When I set up my plex dvr I went and bought a 10m coax extension and split the coax again just before it goes into the freeview set top box. Everything has been working just fine for a few months, the signal strength is good, I’ve had no issues with my freeview set top box and the TV’s never have any issues showing all channels.

It’s only recently (since I upgraded to 1.9.6.4401) that this issue started. My issue does sound a little different to yours, when the issue occurs the program guide is completely empty, it isn’t just select channels that are disappearing, everything is gone. A manual refresh always returns all the channels.

I had enabled the option to do more frequent guide refreshes - I have now disabled this to see if it helps. I’ve also removed the tuner and re-added it (that didn’t help).

Will continue to monitor - fingers crossed the update I installed this morning (1.9.6.4429) may help!

My digital tuner is an Hauppauge WinTV-dualHD tuner, so this is plugged directly into my computer and the coax (the 10m extension) is plugged directly into the tuner. I’m running plex on a Windows 10 client (desktop computer).

Thanks for the offer of help!

Damon;
Excellent response. It certainly appears from your observations that the problem is internal to Plex.

Three thoughts occurred to me as I read your reply.

1.) Coax, I’ve read, looses 50% of its signal strength with each connector the signal goes thru. Your cabling description is simple and works. But one suggestion to make it even better is use a single splitter for all end devices instead of two, which will reduce the number of connections for aerial signal to traverse on its way to your tuner . Also, empty connectors on the splitter can interfere with the signal on other connectors on that splitter, although a proper ohm (75) terminator on the unused connector virtually eliminates that problem. You say you see good signal strength on the coax. Insure the signal strength is good at each coax connector that connects to an end device.

2.) A simple change to test the quality of your connection to Plex is to swap the connectors between the freeview STB and the tuner. If the problem follows the cable over to the freeview stb, then there’s a cable issue, otherwise, no harm, no foul, so don’t swap back. Insure you leave it swapped long enough to have seen the problem follow the cable, if you do swap back.

Sorry to belabor the cabling. Cabling can cause “seemingly” random symptoms, so best to eliminate cabling as a root cause early in the troubleshooting, if one is not sure of the cable plant and the symptoms appear seemingly randomly over time.

Gut feel wise, given the logic in your response and your observations, I now have to agree the “EPG randomly disappears” problem “seems” internal to Plex. So, I’m going there now.

3.) I’m out of ideas, but see below. I need to learn more about how Plex handles the EPG, recordings, and the tuners. I need to do this because my wife is a TV nut and I will be out sleeping in the boat in the backyard if I get her to shut down the Media Center parallel (yep, she still has the Gen 1 system running out of fear of the new and unknown/unproven) AND Plex goes south on me like it is doing with you. I felt your pain two replies ago!

Thus, my third thought is I should study the configuration screens related to EPG/recordings/tuners AND research the Plex support guides and forums for information on these topics. I’m thinking some configuration setting may be setting up the scenario for random EPG/recordings loss, a setting I don’t use. OR, there is some issue between Plex and the Hauppauge tuner. OR, I don’t know enough to come up with more ideas.

I tried a single Hauppauge tuner about 5 to 7 years ago and liked it. Still have it but don’t use it. I currently love the Silicon Dust tuners that I’m using with Plex (sorry, not pertinent).

So, the short of it…

If it isn’t’ your cable plant, then I’ll try to reply later after I’ve educated myself a bit more on the Plex product(s). Given my wife, and my desire to get rid of the infrastructure supporting Media Center, I hope this effort helping you will better enable me to keep my wife happy. When she is not happy, inevitably, I am not happy!

Good luck! and I hope to have some ideas for you to try soon.

Thanks for the great reply Don.

Some very good points there and I will try swapping the cabling over tonight and see if anything changes!

I definitely understand what you’re saying about happy wife, happy life :wink: I’ve had to keep my old freeview STB in play for now because Plex just isn’t up to the mark yet. There is an audible groan from the wife and kids when I say “oh bugger - that didn’t record because Plex lost all the program schedules!”.

Thanks again - will let you know how I get on.

Pinging Dean Junk…ping…ping…ping

Dean, you made a post early on above where it appears your EPG symptom matches that of Damon. Your statement of your Plex and host OS versions implies you are technical, as does Unix and it’s variants.

Do you have anything to add that you’ve learned about the “EPG/recordings go away until EPG is refreshed” problem?

TIA

I’m hoping it will be fixed in the latest release (just came out 1.9.7.4441). Here is one of the things that has been fixed:

  • (DVR) Keep Certain channel data from causing EPG to fail entirely for all channels (#7728)

WooHooo! :slight_smile:
Hope springs eternal.

Well bad news to report. Upon checking this morning, my Program Guide is empty again :neutral: