Is the xi6 box capable of Dolby 5.1? I am only getting 2.0 during live programming on all channels.
what is your setup (audio)?
Xi6 Hdmi to TV. Hdmi arc to Receiver. Xi6 is set to auto detect.
go into settings, audio, and change to expert. working?
I tried expert also and it's still 2.0. Just to confirm,. the xi6 box can send 5.1 for live programming, correct?
only cloud recordings are locked to 2.0 audio. Are you tuning to a network HD prime time channel program?
Yes that’s correct.
would you describe your audio path? sound bar? receiver? is the set top box attached to the TV to HDMI1(one) and then the HDMI ARC takes the audio to the sound bar/receiver's ARC input?
Yes that’s right and I just started an on demand movie and I was getting 5.1 audio. So the setup and connection are fine. It only appears that live tv is 2.0.
you have a comcast rental modem that provides 'hub' internet service (for your on-demand in this case). and your connection to it is fine. the problem is that the Comcast rental modem/gateway is not 'seeing' (successfully connected to) the DVR/XR2 Hub that is supposed to provide tuner services to the Xi6. since it can't use the Hub's real tuners your live TV is falling-back (backup method of connection) to streaming live TV just like a Roku device does. Please check the coax connected to your set top box(es) (DVR or XG2) and look for a 2 inch long barrel connected to the coax (in-line). It sounds like there is an extra unneeded POE filter between the DVR and gateway/modem. if you don't find a filter like that (look on the gateway, too). then can you detail how your home wiring is connected (amplifiers/splitters)?
I have escalated your issue to the Comcast Team available to these forums. Check back often for a reply in this thread from a Comcast Official Employee.
We appreciate you for using the Xfinity Forum to bring this to our attention. I'd be happy to investigate your issue to ensure you have the correct equipment that will provide Dolby 5.1 audio. To get started, please send me a private message. To send a private message, click on "ComcastChe" and then click send a message.