[Failed: No errors, but no data delivered. This is usually because the device failed

[Petrovski]

been having trouble with overnight recording some work some don't. see the Formula 1 recording early hours 2nd November. tuner was dead - no lIve TV this morning but looked ok in Device Manager, rebooting brought it back to life. logs attached. Thanks

[mvallevand]

You restarted the server 4 times the first 3 the device driver wouldn't load so I guess it took the reboot.

Code:

2026-11-01 08:01:30.086 [DEBUG][4] FindFilterByName failed to locate filter: Hauppauge WinTV-dualHD DVBT Tuner 2026-11-01 08:01:30.087 [ERROR][4] Unable to locate tuner filter (Hauppauge WinTV-dualHD DVBT Tuner) 2026-11-01 08:01:30.090 [ERROR][4] Unexpected error: System.NullReferenceException: Object reference not set to an instance of an object. at DShowHelper.DestroyGraph(IGraphBuilder* pGB) at Native.DigitalRecorderBase.DestroyGraph() at DeviceHostWindows.Devices.DigitalDevice.StartStream(String tuning, String target, String& reason) at DeviceHostWindows.Program.HandleRequest(HttpListenerContext context)

Since NextPVR needs Windows to load that driver there is nothing that NextPVR can do. It might have been simply that Windows had deferred some updates and the reboot was pending. The Windows event viewer might show more information like when the previous reboot happened, and when the drivers started having issues.

Martin

[Petrovski]

Seems Windows 11 over enthusiastic with Power Management, I was on some sort of Ultimate Power Saving mode, changed back to Balanced and all is well.