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Every Xfinity gateway uses 10.0.0.1. Comcast recommends the Xfinity app, but the web admin tool still works.
How to log in to the Xfinity (Comcast) router
- Connect to your Xfinity (Comcast) Wi-Fi (or plug in a LAN cable).
- Open a browser and go to 10.0.0.1.
- Enter the username and password below. If they fail, use the ones on the router label.
- Open the Wi-Fi / WLAN menu to change your network name and password.
Xfinity (Comcast) default username and password
| Router / ISP | Login address | Username | Password |
|---|---|---|---|
| xFi Gateway | 10.0.0.1 | admin | password (you are asked to change it) |
Credentials vary by model and installation date. The sticker on your router always wins.
Change the Xfinity (Comcast) Wi-Fi password
After logging in: Gateway → Connection → Wi-Fi → Edit → Save. The Xfinity app does the same.
Use at least 12 characters. Every device will need the new password to reconnect.
10.0.0.1 not opening? Fixes that work
- Connect to the router first. Use its Wi-Fi or a LAN cable — mobile data will never reach 10.0.0.1.
- Type it in the address bar, not the search box, and include
http://—http://10.0.0.1. Many routers have no HTTPS page. - Check for typos: only numbers and dots. The letter “l” or “o” in place of 1 or 0 will not work.
- Your router may use a different address. Check the default gateway (see above) or the label.
- Turn off VPN, proxy or “Private Relay”. They send traffic outside your home network.
- Try another browser or a private window, and clear the cache.
- Restart the router: unplug it for 30 seconds, then wait two minutes after plugging it back in.
- Still stuck? A factory reset restores the default address and password.
Router brands used by Xfinity (Comcast)
Still need help?
If the login page will not open or the password is refused, contact Xfinity (Comcast) support: Xfinity app. A factory reset also works, but on ISP routers it can remove your internet settings — ask your provider first.
Frequently asked questions
What is the Xfinity (Comcast) router IP address?
Xfinity (Comcast) routers use 10.0.0.1.
What is the default Xfinity (Comcast) router password?
xFi Gateway: admin / password (you are asked to change it). If it does not work, check the router label.
How do I change my Xfinity (Comcast) Wi-Fi password?
Gateway → Connection → Wi-Fi → Edit → Save. The Xfinity app does the same.