Severe intermittent TS corruption with Hauppauge WinTV-dualHD tuner

[acemib]

I'm hoping someone can help diagnose an issue I've spent several days troubleshooting.
System:

• NextPVR v7.1.1.260616 on a Windows Beelink mini PC
  
• Hauppauge WinTV-dualHD USB ATSC tuner
  
• Indoor antenna receiving Madison, Wisconsin OTA channels
  
• Kodi on Hisense Google TV and NextPVR app on iPad (for this zip file)
  
• BPVR server connected via Ethernet
  

Problem:
NextPVR intermittently produces severe pixelation, audio stuttering, and corrupted transport-stream recordings.
Initially, the problem appeared primarily during simultaneous streaming. The first stream would work well, but the second would pixelate severely, regardless of whether Kodi or the iPad started first.
Further testing revealed that either tuner can also produce severe corruption while operating alone.
The behavior is intermittent. A stream may start with terrible pixelation, gradually improve after 1–3 minutes, then deteriorate again without any intervention.
Troubleshooting completed:

• Tested both tuners independently, with the other disabled.
  
• Tested simultaneous streams in both startup orders.
  
• Independently rescanned each tuner instead of copying channel configurations.
  
• Disabled digital tuner priming.
  
• Restarted NextPVR services.
  
• Reproduced corruption in saved NextPVR live-TV transport-stream files.
  
• Created an actual NextPVR recording, separate from live playback.
  
• Tested the same antenna and Hauppauge device using Hauppauge WinTV.
  

Important comparison:
WinTV live playback is stable, and a recording made using WinTV played back cleanly.
However, NextPVR recordings using the same hardware exhibit severe corruption.
The problem is present in the recorded transport-stream files themselves, not just Kodi or iPad playback.
Latest confirmed failure — October 23, 2026:
At approximately 10:58:54 a.m., I initiated a WISC recording through Kodi using NextPVR.
The device log identifies Hauppauge WinTV-dualHD ATSC Tuner 1.
At 10:58:57, NextPVR reported:

Code:

locked=1, present=1, strength=45, quality=100

The resulting recording,

Code:

WISC_20261023_10581158.ts

, was severely pixelated.
An analysis of the approximately 105-second recording found roughly:

• 484,356 MPEG transport packets
  
• 7,700 video continuity-counter errors
  
• 790 audio continuity-counter errors
  

Additional signal-strength findings:
Reviewing earlier device logs from October 22–23, I found that successful tuner locks typically reported signal strength around 45–62, with quality usually 100.
There were occasional lower quality readings:

• October 23, 09:02:50 — Tuner 2: strength 45, quality 80
  
• October 23, 09:42:03 — Tuner 1: strength 46, quality 89
  
• October 23, 10:58:57 — Tuner 1: strength 45, quality 100, despite the corrupted recording
  

I recognize that signal-strength values are driver-reported and may not be directly comparable to other devices.
My questions:

1. Does this evidence suggest a Hauppauge BDA driver/capture issue, NextPVR's transport-stream handling, or something else?
   
2. Why would NextPVR report quality 100 and a successful lock while recording a heavily corrupted MPEG transport stream?
   
3. Is there a specific driver, logging option, or targeted diagnostic that could distinguish the capture paths used by NextPVR and WinTV?
   

I would prefer not to repeat channel scans, reinstalls, since both tuners can produce clean video and have been extensively tested.
Attached:

Code:

NextPVR_forum_logs_2026-10-23_SAFE.zip

I can provide the corrupted WISC

Code:

.ts

recording if needed.
Thank you for any guidance!

[mvallevand]

NextPVR reports what the driver gives nothing more and these are unreliable. There would be nothing we could do to help you AI explanation. Quality 100 and high values can actually be bad especially if you are using booster and/or splitters. It can also be cell tower and other RF interference.

Good luck checking the physical connections.

Martin

[acemib]

Thanks Martin. Obviously, AI - thought it would be more succinct than me. meh

No boosters or splitters. I used both the Hauppauge antenna that came with tuner as well as an "HD Antenna" I bought at best buy. Both produce the same quality and strength. The WinTV app is not affected, it is only in NPVR client on iPad, NPVR on Windows, and Kodi on 3 TVs. I could ask for a replacement tuner but it seems I screwed up NPVR setting somewhere.

[sub]

If you want to supply a sample recording, I can take a look at what is happening in the file.

[mvallevand]

AI told us that

An analysis of the approximately 105-second recording found roughly:

484,356 MPEG transport packets
7,700 video continuity-counter errors
790 audio continuity-counter errors

we don't know how many bytes are missing.

Martin

[acemib]

If you want to supply a sample recording, I can take a look at what is happening in the file.

Thanks, sub. Here's the original corrupted WISC recording you offered to examine:

https://drive.google.com/file/d/1cx3nztE...drive_link

I'd appreciate anything you can determine from the file.
Thanks again!

[sub]

Yeah, there is a large number discontinuity errors in the file, indicating missing data.

There is also a large number of packets with TEI errors set. This is set by the tuner when it knows it has received corrupt packets. ie, the data is definitely bad before it gets to NextPVR.

[acemib]

Thanks, sub. I appreciate you taking a look.

What’s confusing me is that I can record/watch the same channels using Hauppauge’s WinTV software without any problems, using the same computer, tuner, and antenna.

With NextPVR, one stream works fine, but when I start a second stream it becomes badly pixelated (the second stream).

Best option might be replace tuner?

[mvallevand]

Did you exercise both tuners in Win TV.

Martin

[acemib]

Hi Martin,

I used the PIP in WinTV to watch two channels simultaneously without any problems.

I also was able to watch one channel in WinTV and another in NextPVR at the same time. Both worked fine.

The problem seems to happen when accessing two streams simultaneously with NextPVR. The second stream becomes badly pixelated.

Thanks!