Lately I've been having some trouble with my Ceton InfiniTV 4 tuning channels that require the tuning adapter to display- for instance the Tennis Channel and NBA TV. Windows Media Center would show "No TV Signal" on these channels. But rebooting my PC (running Windows 7 Professional x64) always fixes this problem. It's an annoyance because sometimes I'm in the middle of a large download or am working on a project and don't want to reboot the computer. So I decided to do some troubleshooting.
First I tried unplugging the tuning adapter (mine is a Cisco STA1520). It wasn't blinking in the first place which meant it should be working fine, but I wondered if that would help anyways. It didn't- after going through it's booting and authorization blinking process and becoming a solid green again, I still could not access the TA-only channels.
I then tried unplugging and re-plugging the USB, and making sure that under "Device Manager", the tuning adapter is there. It is- see screen shot:
But that still didn't change anything. Going to the tuning resolver webpage at:
Still showed that:
TR Status: Disabled
I started to get the idea that the TA is working fine, and the connection to the computer is working fine as Windows sees it perfectly. It has to be something with the Ceton drivers/service.
I browsed over to Services, and noticed two Ceton system services- one called "Centon InfiniTV Service" and a second called "Ceton Tuning Adapter Host Service". See screen shot:
I restarted the former, then went over to the tuning resolver web page- still showed TR disabled. But after restarting the Ceton Tuning Adapter Host Service
, TR Status almost immediately became "Ready". And the typical working Tuning Adapter diagnostic page showed the following:
The channels no longer show "No TV Signal" and work perfectly now without a reboot. I have a suspicion that this problem started upon plugging a USB device to my computer, and then unplugging. In my case it was an Android phone (Motorola Triumph). That may have somehow disrupted the USB connection between the Tuning Adapter and the PC, and the Ceton Tuning Adapter Service never bothered to retry to establish a connection to it. Hopefully Ceton can address the issue with a more permanent fix for such a problem with a future driver/firmware update.