I have a Tivo Bolt and Tivo Premiere, each with Spectrum. Each has tuning adapter Cisco STA 1520 and Cable Card Cisco PKM 802. They've been working without issue for years. Then last Thursday at 2 pm, my Tivo flashed "No tuning adapter." I checked. They both went out at same time. I unplugged and rebooted everything two or three times. Still no tuning adapter. The cable card is still working. All the channels come through, but without the tuning adapter, the station is blank. I've had Spectrum out here. They checked everything. They have no idea why. Is there a Tivo compatibility issue with these tuning adapters now? Has there been a change in Tivo software? Has anyone else had this problem?