Visitor

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4 Messages

Monday, July 13th, 2026 8:27 AM

ethernet ports not working after storm

I had a bad storm that knocked out our power for a few hours. When it came back on the modem (xb8) wifi works but none of the ethernet ports work. 

Don't know what the best way to correct my problem. I smelled a slight burnt smell and thought it was my power supply on my computer but it works fine.

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Expert

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119.6K Messages

16 days ago

Have you first tried power-cycling / re-starting the device by unplugging it for a minute ? Still no joy ? Try hard resetting the device to factory defaults by pressing and holding in the recessed reset button on the rear (or use the WPS button if it doesn't have a reset button hole) for 25-30 seconds. This can sometimes clear up some weird behavior issues. You will lose any customized settings, and they will need to be re-configured from scratch if you do the latter.

Still N/G ? Get it swapped for another. The ports are probably toast.

Official Employee

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3.6K Messages

14 days ago

@user_081c54

Thanks for reaching out to us, the information that @EG  provided is great information on troubleshooting or going to the local Xfinity store to swap out your modem.

 

Let us know if you have any other questions or concerns

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