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Xfinity (Comcast) logo Xfinity (Comcast) Modem Gateway Wi-Fi 4 (802.11n) N600 DOCSIS 3.0 (24x4) Gateway

Xfinity (Comcast) Xfinity Wireless Gateway XB3 (DPC3941T DOCSIS 3.0)

Millions of Comcast Xfinity residential cable internet and Xfinity Voice telephone subscribers

XFINITY Wi-Fi 4
Illustration, not a product photo
Gateway IP
Factory Username
admin
Factory Password
password

Technical specifications

XB Series
Manufacturer Xfinity (Comcast)
Product Series XB Series
Device Class / Category Modem Gateway
Wireless Standard Wi-Fi 4 (802.11n)
Speed Rating N600 DOCSIS 3.0 (24x4) Gateway
Ethernet & Fiber Ports 1x Coax F-Type, 4x GbE LAN, 2x FXS Phone Ports, 1x MoCA
Routing / Firewall Throughput 960 Mbps Downstream / 300 Mbps (5GHz) + 300 Mbps (2.4GHz)
Default Gateway URL http://10.0.0.1 ↗
Operating System / Firmware Comcast RDK-B Gateway Firmware

How to log in to your Xfinity (Comcast) Xfinity Wireless Gateway XB3 (DPC3941T DOCSIS 3.0)

  1. 1 Connect Your Device: Plug your PC into any LAN port on the Xfinity (Comcast) Xfinity Wireless Gateway XB3 (DPC3941T DOCSIS 3.0) using an Ethernet cable, or connect to the default Wi-Fi SSID printed on the router label.
  2. 2 Navigate to Gateway IP: Launch your web browser and enter http://10.0.0.1 into the address bar.
  3. 3 Enter Factory Credentials: Enter username "admin" and password "password", then click Login.
  4. 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 (Comcast) Xfinity Wireless Gateway XB3 (DPC3941T DOCSIS 3.0)?

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 (Comcast) Xfinity Wireless Gateway XB3 (DPC3941T DOCSIS 3.0) support?

The Xfinity (Comcast) Xfinity Wireless Gateway XB3 (DPC3941T DOCSIS 3.0) is equipped with 1x Coax F-Type, 4x GbE LAN, 2x FXS Phone Ports, 1x MoCA with an overall speed rating of N600 DOCSIS 3.0 (24x4) Gateway.

How do I reset my Xfinity (Comcast) Xfinity Wireless Gateway XB3 (DPC3941T DOCSIS 3.0) to factory settings?

Press and hold the physical Reset button on the Xfinity (Comcast) Xfinity Wireless Gateway XB3 (DPC3941T DOCSIS 3.0) for 10 to 15 seconds until the power LED blinks, resetting all settings to factory default.