Issues with Hauppauge Tuner for Xbox

I’m having some issues setting up the DVR feature, it is showing no channels found.

All current drivers have been downloaded from the Hauppauge website, and using the latest 1.7.3.3937 install.

Investigating in the logs, there seems to be an issue with tuning the device - see attached log file.

Using the tuner with the Xbox results in over 20 channels found, all of them being crystal clear. This is without moving the antenna, just plugging the tuner in to my pc instead of the Xbox.

Any ideas?