Kevin Haywood said:
Will the CableCard menu tell us any useful information?
Thanks
Kevin
Is your CableCARD & Tuning Adapter Cisco Or Motorola ?
Both the CableCARD Menu and Tuning Adapter Diagnostics Menu have a ton of info that can tell you exactly what is wrong.
Are you using TiVo's MoCA networking ? That can cause issues tuning channels also, if MoCA is being used you need a splitter and a POE Filter on the Coax going into the Tuning Adapter.
https://www.cox.com/content/dam/cox/residential/support/tv/print_media/Tuning_Adapter_Self_InstallGuide_Cisco.pdf
Here is a ton of info on the Cisco Tuning Adapter if you have a Cisco TA
https://www.tivocommunity.com/community/index.php?threads/cisco-tuning-adapter-status-troubleshooting.482537/
For Cisco CableCARDs, I posted the following information from the CableCARD Menus
https://www.tivocommunity.com/community/index.php?threads/bolt-will-not-get-premium-channels.540134/#post-10868218