Xfinity TV wifi adapter design problem leads to drifting audio/visual sync

The Xfinity TV wifi adapter design has a problem leads to drifting audio/visual sync. In particular with a noisy RF environment such as apartment or condo buildings. It appears that the audio is carried over a TCP based protocol while the video is carried over a UDP based protocol. The problem is that with a high frame error environment, the audio will be retransmitted when errors happen, leading to an ever-increasing audio/visual delay as the video is not retransmitted. After a power-on restart, viewing TV through the xfinity wifi adapter is fine, but over several hours the audio drifts to a longer and longer lag, sometimes reaching a full second. I fix it by cycling power on the wifi adapter, which is very annoying. You need to fix the firmware in the xfinity wifi adapter to use a fully UDP based protocol such as RTP or RTSP to keep audio/visual synchronized.

When using the smart TV's (Sony) built-in wifi, so it is exactly the same wifi radio environment, the TV's streaming apps like Netflix or AppleTV do not lose sync at all. It is strictly a problem with the Xfinity wifi adapter box, where regular "cable" TV has ever-increasing audio lag and even Netflix over the xfinity wifi adapter also has ever-increasing audio lag.

This really needs to be fixed. I do not like having to power cycle the Xfinity wifi adapter once or more daily.