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tshepp2000
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Thursday, October 23rd, 2025 8:38 PM

Vizio 65" pixelating after Xfinity XB8-T upgrade...

Received a new XB8-T upgrade from Xfinity... Pixilation has begun on most channels, some worse than others... Tightened, restarted, rebooted and moved the device around, no difference... It will go away once I unplug the new device... Multiple devices online, 6 Wi-Fi outdoor security cameras and no pixilation with the old Arris Gateway.... Ideas?

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26 days ago

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XfinityThomasD

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1.6K Messages

1 month ago

 

tshepp2000 Sorry to hear that you're having trouble after swapping the modem. Have you tried the automated diagnostics through the Xfinity app? It can detect and fix common issues through the diagnosis.

 

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tshepp2000

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yes... It only stops pixelating when I unplug the XB8... As soon as I restart the Wi-Fi the pixilation comes right back... Swapped the cable box and the XB8 with 'newer' ones, same problem...

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28 days ago

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XfinityJosephA

Official Employee

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2K Messages

tshepp2000 it might be the wireless connection or the wireless band the Vizio is connecting to. Have you tried splitting the bands in the Xfinity app and testing the Vizio on different connection types? When you open the Xfinity app you can do this from the Wi-Fi icon. From here go to Wi-Fi details and then edit Wi-Fi settings. 

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26 days ago

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