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ANSWERED: Comcast Modem Wireless Gateway Device/Feature Comparison

Xfinity Gateways and xFi Gateways are all-in-one devices that deliver Internet and Voice connectivity, whole-home WiFi coverage, network control and speed for the ultimate connected experience.

General features of our latest devices, the xFi Advanced Gateway and xFi Gateway 3rd Generation include:
  • Secure wireless home network
  • Secondary Xfinity Hotspot network
  • Exclusive WiFi management tools and Parental Controls (xFi)
  • Extended whole-home coverage with the xFi Advanced Gateway and xFi Pods
  • Up to 1 Gigabit speeds with xFi Advanced Gateway and up to 2.5 Gigabit speeds with the xFi Gateway 3rd Generation
  • Internet connectivity through Ethernet connection (two or four ports)
  • Connection for one to two phone lines
  • Regular automatic updates to improve speed, coverage, control and security

Find out more about the benefits of renting an xFi Gateway.



Xfinity Gateway Models

We are always improving our equipment, and we recommend updating your device every two to three years in order to get the most out of your Xfinity Internet subscription. For specific details on all of our available Gateway models, please see below.

Note: Looking for your Gateway model number? Review the equipment’s bottom panel or visit your Internet Service page on My Account or xFi.


xFi Gateway 3rd Generation
Our xFi Gateway 3rd Generation offers a new colorway (white/gray) to compliment your home decor, a less disruptive LED light, the fastest speeds, more ports, the widest coverage, exclusive WiFi management tools, Parental Controls and xFi Pods for extended coverage.
ComcastJessie_0-1587749768286.png

 

  • Model Numbers: CGM4331COM
  • Friendly Model Name: XB7
  • Gigabit Ethernet Ports: 4
  • Dual-Band WiFi Option: Yes
  • Maximum Data Throughput: 2.5 Gbps
  • WPS (WiFi Protected Setup): Yes
  • Gateway/ Network Management Tool (http://10.0.0.1) : Yes
  • Xfinity xFi Eligible: Yes
  • Xfinity xFi app Activation: Yes
  • Two Total Telephone Ports: Yes (separate Alarm Port)
  • Battery Backup Capability (Xfinity Voice Only): No
  • Link Cordless Phones (CAT-iq 2.0*): Yes
  • Home Hotspot Capable: Yes
  • Compatible with Xfinity Home: Yes


xFi Advanced Gateway
Our xFi Advanced Gateway offers up to 1 Gigabit speeds, wide coverage, exclusive WiFi management tools, Parental Controls and xFi Pods for extended coverage. Its attractive design lends itself to being positioned in a central open area for best broadcasting.

ComcastJessie_1-1587749768287.png

 

  • Model Numbers: TG3482G and CGM4140COM
  • Friendly Model Name: XB6
  • Gigabit Ethernet Ports: 2
  • Dual-Band WiFi Option: Yes
  • Maximum Data Throughput: 1 Gbps
  • WPS (WiFi Protected Setup): Yes
  • Gateway/ Network Management Tool (http://10.0.0.1) : Yes
  • Xfinity xFi Eligible: Yes
  • Xfinity xFi app Activation: Yes
  • Two Total Telephone Ports: Yes
  • Battery Backup Capability (Xfinity Voice Only): Yes
  • Link Cordless Phones (CAT-iq 2.0*): Yes
  • Home Hotspot Capable: Yes
  • Compatible with Xfinity Home: Yes


xFi Wireless Gateway
Offers the speed, coverage, WiFi management tools, Parental Controls and xFi Pods for extended coverage.

ComcastJessie_2-1587749768288.png

 

  • Model Numbers: DPC3939, DPC3941T, and TG1682G
  • Friendly Model Name: XB3
  • Gigabit Ethernet Ports: 4
  • Dual-Band WiFi Option: Yes
  • Maximum Data Throughput: 700 Mbps
  • WPS (WiFi Protected Setup): Yes
  • Gateway/ Network Management Tool (http://10.0.0.1) : Yes
  • Xfinity xFi Eligible: Yes
  • Two Total Telephone Ports: Yes (separate Alarm Port)
  • Battery Backup Capability (Xfinity Voice Only): Yes
  • Link Cordless Phones (CAT-iq 2.0*): Yes (excluding TC8717)
  • Home Hotspot Capable: Yes


xFi Fiber Gateway
This WiFi gateway/MTA solution provides complete home connectivity and coverage at high speeds at our Fiber-to-the-Unit properties.

ComcastJessie_3-1587749768289.png

 

  • Model Numbers: Arris X5001
  • Friendly Model Name: XF3
  • Gigabit Ethernet Ports: 4
  • Band WiFi Option: Yes
  • Maximum Data Throughput: 1 Gbps
  • WPS (WiFi Protected Setup): Yes
  • Gateway/ Network Management Tool (http://10.0.0.1) : Yes
  • Xfinity xFi Eligible: Yes
  • Xfinity xFi app Activation: No
  • Two Total Telephone Ports: Yes
  • Battery Backup Capability (Xfinity Voice Only): Yes
  • Link Cordless Phones (CAT-iq 2.0*): No
  • Home Hotspot Capable: Yes
  • Compatible with Xfinity Home: Yes

 


Xfinity Gateway (1/2/3)
These are old Wireless Gateways limited speeds and functionality.

ComcastJessie_4-1587749768289.png

 

  • Model Numbers: TC8706C, TG852G, TG862G, TC8305C, TC8717
  • Friendly Model Name: XB2
  • Gigabit Ethernet Ports: 4
  • Dual-Band WiFi Option: Yes
  • Maximum Data Throughput: 275 Mbps
  • WPS (WiFi Protected Setup): Yes
  • Gateway/ Network Management Tool (http://10.0.0.1) : Yes
  • Xfinity xFi Eligible: No
  • Xfinity xFi app Activation: No
  • Two Total Telephone Ports: Yes (separate Alarm Port)
  • Battery Backup Capability (Xfinity Voice Only): Yes
  • Link Cordless Phones (CAT-iq 2.0*): Yes
  • Home Hotspot Capable: Yes
  • Compatible with Xfinity Home: Yes

 

 

Wireless Gateway Device Comparison

The following table compares all Gateways.
Product Features Wireless Gateway 1 Wireless Gateway 3 xFi Fiber Gateway xFi Wireless Gateway xFi Advanced Gateway xFi Gateway 3rd Generation
(Model Numbers: TG852G, TG862G, TC8305C) (Model Number: TC8717C) (Model Number: Arris X5001) (Model Numbers: DPC3941T, DPC3939, TG1682G) (Model Number: TG3482G, CGM4140COM) (Model Number: CGM4331COM)
Four Total Gigabit Ethernet Ports Yes Yes Yes Yes No (2) Yes
Dual Band WiFi No Yes Yes Yes Yes Yes
Maximum Data Throughput 150 Mbps 700 Mbps 1 Gbps 700 Mbps
(275 Mbps for DPC3939)
1 Gbps 2.5 Gbps
WPS (WiFi Protected Setup) Yes Yes Yes Yes Yes Yes
Gateway and Network Management Tool
(http://10.0.0.1)
Yes Yes Yes Yes Yes Yes
Xfinity xFi Eligible No No Yes Yes Yes Yes
Xfinity xFi app Activation No No No Yes Yes Yes
RDK-B No No Yes Yes Yes Yes
Two Total Telephone Ports Yes Yes
(separate Alarm Port)
Yes Yes
(separate Alarm Port)
Yes Yes (separate Alarm Port)
Battery Backup Capability (Xfinity Voice Only) Yes Yes Yes Yes Yes No
Eligible for an Xi5 Device No No Yes Yes (excluding DPC3939) Yes Yes
Link Cordless Phones (CAT-iq 2.0*) No Yes No Yes Yes Yes
Home Hotspot Capable Yes Yes Yes Yes Yes Yes
Compatible with Xfinity Home Yes Yes Yes Yes Yes Yes

*CAT-iq 2.0: Cordless Advanced Technology (CAT). CAT-iq 2.0 is a digital communication standard, used primarily for cordless phone systems. CAT-iq 2.0 handsets can be paired with the Wireless Gateway.
 
 
Using Third-Party Equipment
Alternately, some Xfinity customers may wish to purchase and use third-party cable modems and Gateways. However, you will miss out on the full suite of Xfinity services.

Note: Before purchasing your own equipment, confirm it is approved for use with Xfinity services and can achieve the maximum capability of your subscribed speed tier. Visit https://mydeviceinfo.xfinity.com.
 
 
 
Additional Information

 

 

Additional Resources

https://www.xfinity.com/support/articles/broadband-gateways-userguides

https://www.xfinity.com/support/articles/wireless-gateway-3
https://www.xfinity.com/support/articles/wireless-gateway-1
View updated open source license information for certain Gateway models
Version history
Revision #:
16 of 16
Last update:
‎04-24-2020 01:48 PM
Updated by: