Exact same problem with my Kenwood VR-507 and it is driving me crazy! It is not the remote! it has to be something with the unit.

The unit fails to respond to its own native remote as well as my tivo remote.

The problem is intermittent but getting more and more frequent. Either the unit is defective or there is interference from one the many wireless devices in my home:

- router
- baby monitor
- video game controller
- phones

This is the only mention I could find of this problem via google. I hope we can keep it going until someone figures it out!!