Why is the audio on the 4K channels coming through as two channel PCM when the audio on the non-4K channel for the same program is showing as Dolby digital?

Here is the situation, there are multiple ( 10+) warning entries on the S33v3 of RNG-RSP Commanded Power 6 dB below,,,,,., apparently the CMTS is asking the modem to change it upstream power levels and the modem won’t comply. The drop line was replaced over a year ago with a type of RG6 coax cable (

I have Xfinity Gigabit Extra. Before the recent Xfinity network upgrade in my area, I consistently received approximately 40 Mbps upload. Since the upgrade, my upload speed has consistently been approximately 20 Mbps, regardless of the time of day. I recently ran Waveform's Bufferbloat test and foun

Hello, my promo expired, and my internet bill increased by $44 a month. I’d like to discuss options to reduce my rate. Thank you.

Dear Xfinity Customer Relations Team, I am writing to formally express my frustration with an unexpected price increase and the handling of my account. For 24 months, I paid $35 per month for internet service under a promotional rate. I did not receive any email notifying me that this promotion was

I need to cancel my Xfinity service. The earliest callback I'm being offered is still several days away. I'd like assistance cancelling my service without waiting for a callback.

I’ve been double billed by Comcast since January 2026, cancelled my service in July and have spent countless hours on the phone with your terrible customer service support. This last phone call I was told both accounts (the one closed in January and the other account opened in January) were both dea

My x1 box won’t turn on, I’ve called and tried to handle this through chat and no one seems to grasp that sending a signal to the box is going to make it work. It won’t turn on. I have plugged and replugged it switched sockets etc still no power going to the box. I need a replacement and have no ide