Cable companies may rearrange the physical channel layout on occasion. This typically results in some or all channels not working because they have moved to a different location.
In some regions Comcast is encrypting the expanded channels and changing the physical channel layout. The resulting symptom is that some or all channels stop working, some because of encryption and the remainder because they have moved to a different location.
Solution - run a channel scan in HDHomeRun Setup to detect the new channel layout, then run a channel scan in your PVR application. This will restore access to the unencrypted channels.
Windows 7 WMC: Follow the instructions repeating the "Windows Media Center - Configuration" and "Enabling missing channels" steps:
http://www.silicondust.com/hdhomerun/in ... wmc_tvpack
You can also check our website for available unencrypted channels:
(all channels shown are unencrypted and seen within the last 48 hours)