What is the default IP address for Xfinity xFi Gateway XB8 (CGM4981COM)?

The factory default IP address for Xfinity xFi Gateway XB8 (CGM4981COM) is http://10.0.0.1.

What is the default username and password for Xfinity xFi Gateway XB8 (CGM4981COM)?

The default username is "admin" and the default password is "password".

How do I factory reset the Xfinity xFi Gateway XB8 (CGM4981COM)?

Locate the small Reset pinhole on the back panel of the Xfinity xFi Gateway XB8 (CGM4981COM). Press and hold it with a paperclip for 10-15 seconds while powered on until the LED lights cycle.

Xfinity Modem Gateway Wi-Fi 6E (802.11ax) AXE8400 Tri-Band DOCSIS 3.1

Xfinity xFi Gateway XB8 (CGM4981COM)

Comcast Xfinity Gigabit Extra & 2 Gbps cable internet with xFi Advanced Security

Open http://10.0.0.1 ↗

Illustration, not a product photo

Gateway IP

10.0.0.1

Factory Username

admin

Factory Password

password

Technical specifications

xFi Gateway

Manufacturer	Xfinity
Product Series	xFi Gateway
Device Class / Category	Modem Gateway
Wireless Standard	Wi-Fi 6E (802.11ax)
Speed Rating	AXE8400 Tri-Band DOCSIS 3.1
Ethernet & Fiber Ports	1x Coax RF, 1x 2.5G Multi-Gig LAN/WAN, 3x 1G LAN, 2x RJ11 Phone
Routing / Firewall Throughput	Multi-Gigabit DOCSIS 3.1
Default Gateway URL	http://10.0.0.1 ↗
Operating System / Firmware	xFi Gateway GUI

How to log in to your Xfinity xFi Gateway XB8 (CGM4981COM)

1 Connect Your Device: Plug your PC into any LAN port on the Xfinity xFi Gateway XB8 (CGM4981COM) using an Ethernet cable, or connect to the default Wi-Fi SSID printed on the router label.
2 Navigate to Gateway IP: Launch your web browser and enter http://10.0.0.1 into the address bar.
3 Enter Factory Credentials: Enter username "admin" and password "password", then click Login.
4 Configure Security & Password: Follow the on-screen Quick Setup wizard to customize your Wi-Fi SSID, set WPA3/WPA2-AES encryption, and establish a new master administrator password.

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Frequently asked questions

What is the default login for Xfinity xFi Gateway XB8 (CGM4981COM)?

The default IP address is http://10.0.0.1, default username is "admin", and default password is "password".

What ports and speeds does Xfinity xFi Gateway XB8 (CGM4981COM) support?

The Xfinity xFi Gateway XB8 (CGM4981COM) is equipped with 1x Coax RF, 1x 2.5G Multi-Gig LAN/WAN, 3x 1G LAN, 2x RJ11 Phone with an overall speed rating of AXE8400 Tri-Band DOCSIS 3.1.

How do I reset my Xfinity xFi Gateway XB8 (CGM4981COM) to factory settings?

Press and hold the physical Reset button on the Xfinity xFi Gateway XB8 (CGM4981COM) for 10 to 15 seconds until the power LED blinks, resetting all settings to factory default.