I was also able to run WinTV (Hauppauge product) and it grabbed the Hauppauge Quad USB tuner just fine and started playing TV. No issues.
This seems to be related to NextPVR and the latest Win11 update that I installed this morning.
I've tried looking at the devices and sometimes NextPVR is finding all four of the quad tuners. Sometimes they don't show up in the Web app but I can rescan and then they are there. Whether the tuners show up or not, the result is the same... NextPVR will not record nor will it use a tuner for live TV. It sees the tuners, knows they are there, but can't use them.
I too get the greyed out box (that should be a green N). That seems to mean that NextPVR is not running or not running correctly. I can right click on the greyed out box and select one of the apps (web or desktop) and that brings NextPVR to life. It still won't play or record but the apps seem to run so I can access settings, etc.
Then I uninstalled 5065789 and NextPVR started working again. I don't know whether you have to install both or just the 5065789 will do it. In any case, it appears we have at least a temporary fix to the problem.
Now, I suspect it will take an update to NextPVR software to have a more durable solution. I would really like to keep my Win11 Pro software up to date without breaking my TV recording capability. As of now, I guess I'll have to disable Window 11 updates.
The IPTV tuner still works fortunately, so can still use NextPVR for that for now. I thought my Hauppauge tuner had died, but saw it worked with other DVB software.
(2 hours ago)Remleym Wrote: Now, I suspect it will take an update to NextPVR software to have a more durable solution.
Don't expect any changes in NextPVR. A structural change would be complex and no matter what sub did Microsoft code changes could always break it. Once MS fix this hopefully their QA process will ensure http is not impacted. Honestly how this made it out the door boogles my mind.
I have experienced the same problem. I was unable to stop or remove the updates from Microsoft on 10/14/2025. There seems to be an issue with my Hauppauge quadhd pci express tuner. I have had to reinstall drivers for this device, but, the live TV only works some of the time, then stops altogether. My Hauppauge Win10 live TV viewing program is not working either. Ideas?