Tuning a channel

[Ricknextpvr]

Yes, I'm back...

TV show set to record at 6:30.  Turn on TV, click on in-process recording and nothing.   Stop recording.  Go to Guide, click on channel and watch Live.  

Still using exact same signal, watching show via NextPVR.

What is it that prevents the recording that allows the live viewing of a perfectly clear broadcast with no glitches? 

Yes, I know the answer is that NextPVR is pulling data from the HD HomeRun, but it starts the session, and would run the 30 minutes and then display that it couldn't lock signal or similar.   Yet, it could, because I watched it live via NextPVR...

Can I alter the strength cutoff somehow?

[mvallevand]

Two things to test. Record to C: and not M: to match live TV.

When you have time move these to Schedules Direct if you can

2026-09-30 02:41:25.397 [DEBUG][41] 17 channels configured to use ATSC-EPG
2026-09-30 02:41:25.397 [DEBUG][41] - 7295: 2.6 FOX WX
2026-09-30 02:41:25.397 [DEBUG][41] - 7296: 4.1 WDIV-HD
2026-09-30 02:41:25.397 [DEBUG][41] - 7300: 7.1 WXYZ-HD
2026-09-30 02:41:25.397 [DEBUG][41] - 7304: 7.5 ShopLC
2026-09-30 02:41:25.397 [DEBUG][41] - 7310: 18.6 WDWO-CD
2026-09-30 02:41:25.397 [DEBUG][41] - 7311: 18.7 WDWO-CD
2026-09-30 02:41:25.397 [DEBUG][41] - 7315: 20.4 HSN
2026-09-30 02:41:25.397 [DEBUG][41] - 7322: 31.7 GameSho
2026-09-30 02:41:25.397 [DEBUG][41] - 7323: 31.8 HSN
2026-09-30 02:41:25.398 [DEBUG][41] - 7324: 31.9 HSN2
2026-09-30 02:41:25.398 [DEBUG][41] - 7330: 50.6 QVC
2026-09-30 02:41:25.398 [DEBUG][41] - 7331: 50.7 MeTVToo
2026-09-30 02:41:25.398 [DEBUG][41] - 7332: 56.1 WTVS-HD
2026-09-30 02:41:25.398 [DEBUG][41] - 7336: 56.5 D-MLC
2026-09-30 02:41:25.398 [DEBUG][41] - 7337: 62.1 WWJ-HD
2026-09-30 02:41:25.398 [DEBUG][41] - 7340: 62.4 FAVE TV
2026-09-30 02:41:25.398 [DEBUG][41] - 7341: 62.5 Story

Martin

[Ricknextpvr]

I can do that, but C and M are the same physical drive, which is a 2TB NVMe. C has 43% free, M has 21%.

Sorry, but what does "move these to Schedules Direct" mean?

[mvallevand]

Move their EPG settings from DVB/ATSC

Martin

[Ricknextpvr]

Thank you Martin.

So on that list, we watch 56.1, 62.1, 2.1, 4.1, and 7.1.  I think all are on the list twice (see attachment) except 2.1.  But I made the change.

Are you implying that when I set a recording to say record NBC (WDIV), it was using the alternate channel listing and therefore not finding a signal, but only sometimes?

That would be a great find after all our reception discussions... 

[mvallevand]

So on that list, we watch 56.1, 62.1, 2.1, 4.1, and 7.1.  I think all are on the list twice (see attachment) except 2.1. 

Are you implying that when I set a recording to say record NBC (WDIV), it was using the alternate channel listing and therefore not finding a signal, but only sometimes?

I was only suggested that your EPG update could be improved, I couldn't tell that you weren't merging them.  With your 4 tuners they do need to be kept in sync when there are channel moves but that is a different situation..

Regarding the Live TV vs Recordings those are using 2 different tuners for sure there was a driver error tuning Tom Llamas on the 28th and the 30th

2026-09-28 18:25:57.237 [DEBUG][4] Unexpected error on ATSC put_TunerRequest: 0x8000FFFF
2026-09-30 18:26:45.509 [DEBUG][4] Unexpected error on ATSC put_TunerRequest: 0x8000FFFF

It looked like the major difference was the M: drive which I is why I suggested it however it did work on the 27th 

2026-09-27 18:25:37.724 [DEBUG][4] locked=1, present=1, strength=74, quality=94  (took 1703ms to check)

So it could be signal or antenna connection issue, I really can't tell.  You might need to rescan 1036B9BC if something changed since the 27th. and the problem continues.

Martin

[Ricknextpvr]

Gotchya.

We have had infrequent tuning issues, most often on CBS, and it pulls in an alternate broadcast overnight. But then recently (we changed nothing), NBC started having issues, which never did before.

Would you agree that if both C and M are on the same NVMe, that this should not be a reason?

One thing that might be interesting is seeing if a specific tuner is the one that always has the issues. As you may be aware, the HD boxes each have 2 tuners. I have 2 HD boxes, hence 4 tuners (last year I swapped out one due to some issues that seemed to be tied to it).

I'd love to buy a modern HD box, but until they get the encrypted channel issue resolved, it's just wasted money.

Yesterday I did add in my signal booster that had been disconnected since sometime last year.

[mvallevand]

Probably no difference bug If NBC fails on C then it is not the issue, it was an easy test, easier than positing and replaying to multiple questions.

Remove the booster and test NBC recordings again.

The advantage to newer tuners is being able to use TCP and not UDP from the BDA drivers.

Martin

[Ricknextpvr]

Booster was just added yesterday. Recordings failed before it. I think I want to see if the listing fix you had me do does anything before I do something else like make the M to C change.

[mvallevand]

The listing won't fix what I saw on NBC but then again the M to C change won't either. You've had this happen on ABC and NBC before https://forums.nextpvr.com/showthread.php?tid=66412 and https://forums.nextpvr.com/showthread.ph...#pid603092

Martin