Update router firmware for Netgear CG814, Linksys WCG200 ...
This device is explicitly listed as a supported and recommended device by xfinity . The issue has since been fixed with a new firmware version. Which xfinity has already pushed to the gateways that they own. It is solely their responsibility to issue firmware updates to all gateways (including customer owned ones).

Need Comcast to push a firmware update to my router

I have an Arris Surfboard G36 that has documented issues connecting periodically to xfinity services without the latest firmware update . However, every source I read says I need for xfinity to push the update to my device remotely and I can't do it myself.

How To Update Firmware On Xfinity Router
Learn how to update the firmware on your Xfinity router . Find instructions for checking for updates and installing them.
Learn how to update your Xfinity router firmware for improved performance and security. Follow our step-by-step guide to keep your network running smoothly.
Understanding Comcast Xfinity Router Firmware Update Not Supported Before the Gallery
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Replacing the Xfinity Gateway Router Modem (How to instructions. This note connects the source idea with the visuals in a simple, reader-friendly way.
ARRIS XB6 WestNet Comcast XFINITY Advanced Gateway User, 40% OFF. It works as a short bridge between the article summary and the gallery section.
Looking at multiple sources also helps separate the main idea from small decorative details.
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