Channel losses

[poppy10]

Hi  Could somebody help  regarding the loss of the channels I am  experiencing at the moment.

My nearest connection is Crystal Palace. The device tries  to search for channels but finds nothing . Then it gives a mesage to show the  channels in Groups

The system has been working fine for a few days then all of a sudden whilst the channel are still showing in the devices the programmes have failed to lock onto the respective channels 

Thank you Tom Reiid

[sub]

Your antenna is still on your roof?

Try doing a scan, then post the logs, and I'll check for any errors.

[poppy10]

  logs-20200722-1200.zip (Size: 1.34 MB / Downloads: 1)
  logs-20200722-1200.zip (Size: 1.34 MB / Downloads: 1) Hi Thank you for your help
I have an arial receiver and it has a booster which is shared with the television.
I have switched the two arieals which appear to be okay
I have run the system both with and without the  internet  line
I have reduced the devices to the two I need showing Crystal palace
I have attached the logs herewith

[Beginner]

I had a similar situation when I installed and tried to search with reference to my local transmitter. 

That didn't work, but instead i finally tried either all UK channels or all channels (can't quite remember which one -- sorry!) and that did the trick.

[Graham]

I have reduced the devices to the two I need showing Crystal palace
I have attached the logs herewith

The ... device-7231 BDA DVBT Tuner-2.log ... has lots of ...

2020-07-22 10:41:49.991 [DEBUG][9] Unexpected error on DVB-T put_TunerRequest: 0x8007001F

This appears to be a message from the driver software for the tuner.

Are you running the latest version of the driver?  Does a reboot of the computer solve the problem?