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Hardware Engineering Reference (2026 Edition)

Xfinity / Comcast Router Admin Login & Default Credentials

Complete technical setup guide for Xfinity / Comcast networking equipment. Access your gateway dashboard at 10.0.0.1 or 10.0.0.1, retrieve verified credentials, and configure Wi-Fi security.

Quick Answer: How to Log Into Any Xfinity / Comcast Router

Connect your device to your Xfinity / Comcast Wi-Fi network (SSID format: xFi-XXXX or Comcast_XXXX) or connect an Ethernet cable to LAN Port 1. Open any web browser and go to http://10.0.0.1 or http://10.0.0.1. Enter factory default username admin and password password.

Live Gateway Diagnostic Console
Console Idle

Test whether your device is currently connected to a Xfinity / Comcast gateway at 10.0.0.1 or http://10.0.0.1 directly from your browser.

Open 10.0.0.1 Dashboard →

Xfinity / Comcast Router Models & Default Credentials

Verified factory default IP addresses, admin usernames, and passwords for Xfinity / Comcast hardware:

Swipe left/right to view all columns →
Hardware Model Default Gateway IP Default Username Default Password Technical Notes
Xfinity / Comcast
xFi Gateway XB3, XB6, XB7, XB8
http://10.0.0.1
 admin password Prompts to create a custom password immediately upon first login.

Step-by-Step Xfinity / Comcast Admin Setup Guide

1

Connect to Xfinity / Comcast Local Network

Connect your PC, smartphone, or tablet to the router network via Wi-Fi (SSID format: xFi-XXXX or Comcast_XXXX) or plug an Ethernet patch cable into any numbered LAN port (1 through 4). Avoid connecting to guest networks.

2

Launch Browser & Enter Gateway IP

Open Chrome, Safari, Firefox, or Edge. In the top URL address bar, enter http://10.0.0.1 or http://10.0.0.1 and press Enter.

3

Input Factory Admin Credentials

When prompted by the authentication dialog, enter default username admin and password password. If these fail, check the printed serial label underneath your device or perform a hardware reset.

4

Update Admin Password & Configure Wi-Fi

Immediately navigate to Administration / System Settings and replace the default password with a cryptographically secure key. Proceed to Wireless Settings to configure WPA3-Personal security.

How to Factory Hard Reset a Xfinity / Comcast Router

If you forgot your customized admin password or experience firmware corruption, you can restore factory defaults using the physical hardware reset procedure:

Important Notice: Configuration Erasure

A factory reset permanently erases all customized Wi-Fi network names (SSIDs), passwords, port forwarding rules, static DHCP reservations, and custom DNS settings. Your router will revert to factory defaults.

  1. Verify your Xfinity / Comcast router is plugged in and the Power LED light is solid.
  2. Locate the recessed Reset pinhole button on the rear or bottom panel.
  3. Insert an unfolded paperclip or SIM-ejection tool and press the button firmly for 30 seconds.
  4. Watch the LED indicator lights blink, indicating the flash memory reset sequence has initiated.
  5. Release the button and allow 2 to 3 minutes for the system to complete its automated reboot cycle.
  6. Reconnect using factory default credentials: username admin and password password.

Frequently Asked Technical Questions

Comcast Xfinity cable modems and wireless gateways (XB3, XB6, XB7, XB8) use 10.0.0.1 as their local administrative gateway IP address.

The default username is 'admin' and the default password is 'password'. When you log in for the first time, the gateway will immediately prompt you to set a new custom password.

Log into http://10.0.0.1, navigate to Gateway > At a Glance in the left sidebar, and switch 'Bridge Mode' from Disabled to Enabled. Connect your third-party router (e.g., Asus or Netgear) to LAN Port 1.

Locate the WPS / Reset button on the back of the gateway. Press and hold it firmly for 30 to 45 seconds until the status LED light on the top of the gateway blinks, then release and allow 10 minutes to restore.