In the modern hyper-connected home, your router is the silent workhorse keeping everything running. For users of the —a popular Wi-Fi 6 gateway/router often provided by ISPs like Xfinity (Comcast) or other cable providers—keeping the firmware updated is not just a recommendation; it is a necessity.

Because this device is often leased through an Internet Service Provider (ISP), firmware updates are sometimes managed differently than retail routers (like Asus or Netgear). Understanding this relationship is critical.

Before updating, you need to know what you’re running.

Unlike consumer routers, the ARC-XCI55AX support downloading a firmware file from a website and manually uploading it. Instead, updates are pushed automatically by AT&T (or your ISP) over the broadband connection.