ANSWERED: Comcast Modem Wireless Gateway Device/Feature Comparison

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Comcast now offers the Wireless Gateway 1 (model numbers TG862G and TC8305C), Wireless Gateway 2  (model numbers DPC3939 and TC8706C), Wireless Gateway 3 (model numbers DPC3941T, TC8717 and TG1682G) and XB6 Wireless Gateway (model numbers TG3482G and CGM4140COM). This article provides information about these Wireless Gateways and their features. 

Wireless Gateway 1

Features

The Wireless Gateway 1 combines the function and features of a modem and a router into one convenient device. Here are some of the Wireless Gateway 1 services and features you can enjoy:

• High Speed Internet: The Wireless Gateway 1 contains a DOCSIS 3.0 cable modem, which provides some of the fastest download speeds available.
• WiFi: The Wireless Gateway 1 provides 2.4 WiFi connection for your home network. Connect multiple computers, laptops, tablets and other WiFi devices to the Internet wirelessly. Learn more about WiFi.
• Gigabit Ethernet Ports: Connect up to four wired devices to the Wireless Gateway 1.
• Home Networking: Connect your computers, printers and other devices to the Wireless Gateway 1 to access the Internet both wirelessly and with cables. Find out how to set up your home network.
• Built-In Security: The Wireless Gateway 1 comes with Comcast-recommended settings for a secure network (e.g., firewall, WiFi). However, for added security, Comcast recommends changing the default password for the administration site (Admin Tool) to a password of your own.
• Phone Service: The Wireless Gateway 1 supports your XFINITY Voice service with two analog telephone ports (if you also subscribe to XFINITY Voice service).

Front and Top Panels

The front panel of the Wireless Gateway 1 features white LED lights to let you know the status of different functions. These indicate the status of the AC power, upstream and downstream connectivity, Internet, WiFi, phone and battery.

The Wireless Gateway 1 has a WPS (WiFi Protected Setup) button on the top panel and the following LEDs on the front panel:

• Power: AC power status
• US/DS: Upstream and downstream connectivity
• Online: Internet connectivity status
• WiFi: Status of the 2.4 GHz wireless LAN
• Tel1: Status of phone line 1
• Tel2: Status of phone line 2
• Battery: Battery power status

Back Panel

On the back panel of the Wireless Gateway 1, you'll find connection ports, the Reset button and Ethernet LED lights for your wired connections. The following options are available on the back panel:

• Reset button: Resets the wireless gateway
• USB Connector: For future use
• Tel1: Connector for analog phone
• Tel2: Connector for analog phone
• Ethernet 1-4: Connectors for use with computer LAN ports
• Cable: Connector for the coaxial cable
• Power: Connector for power

Installing the Wireless Gateway Battery (Only for Xfinity Voice Service)

A backup battery can be installed in your Wireless Gateway 1 to provide additional hours of Xfinity Voice service during a power outage. Get more information on purchasing a battery.

You can also get help installing a battery in your gateway.

Admin Tool

You can view and adjust your router and network settings - including features like parental controls, security settings and your Network Names (SSIDs) and Network Password (Key) - through the Wireless Gateway 1’s Admin Tool, located online at http://10.0.0.1.

You can learn about the Admin Tool. You can also learn about advanced wireless gateway features.

Wireless Gateway 2 & 3

Features

• • High-Speed Internet: The Wireless Gateway 2 and Wireless Gateway 3 provides some of the fastest download speeds available. The Wireless Gateway 3 is the latest device from Xfinity, offering speeds over 700 Mbps.
  • Dual-Band WiFi: Wireless Gateway 2 and Wireless Gateway 3 both provide dual-band WiFi.
    • Connect multiple computers, laptops, tablets and other WiFi devices, with higher maximum throughput.
    • Less interference and fewer dead spots in the home allow for faster speeds.
    • A more reliable connection allows for improved video streaming and gaming experience.
    • The 5 GHz AC-enabled band allows for better in-home signal by supporting "beamforming," which detects devices and amplifies the signal in the direction of the device.*
    • Backwards compatible with non-AC-enabled devices or clients.*
    • Operates within the 802.11ac spectrum, a WiFi channel that is used by many of the latest consumer electronic devices.*
  • Gigabit Ethernet Ports: Connect up to four wired devices to the Wireless Gateway 2 or Wireless Gateway 3.
  • Home Networking: Connect your computers, printers and other devices to the Wireless Gateway 2 or Wireless Gateway 3 to access the Internet both wirelessly and with cables. With the Wireless Gateway 2 or Wireless Gateway 3, you can leverage your existing in-home coaxial cable network to create a faster and more efficient network of connected devices.
  • Built-In Security: The Wireless Gateway 2 and Wireless Gateway 3 come with Comcast-recommended settings for a secure network. For additional security, Comcast recommends changing the default password for the administration site (Admin Tool) to a password of your own.
  • Voice Service: If you also subscribe to Xfinity Voice, the Wireless Gateway 2 and Wireless Gateway 3 support your service with two analog telephone ports.

Front Panel

The front panel of the Wireless Gateway 2 or Wireless Gateway 3 displays a series of LED lights, which indicate different features. Use the image and description below to familiarize yourself with the front panel.

Front panel items include:

• Power: AC power status
• US/DS: Upstream/downstream connectivity
• Online: Internet connectivity status
• 2.4 GHz WiFi: Wireless LAN status for 2.4 GHz band*
• 5 GHz WiFi: Wireless LAN status for 5GHz band*
• Tel1: Phone line status
• Tel2: Phone line status
• Battery: Battery power status

**Note**: Both the 2.4 GHz and 5 GHz Wireless Gateway LED lights will flash as your device sends and receives data.

Back Panel

On the back panel of your Wireless Gateway 2 or Wireless Gateway 3 you will find several ports and buttons, which serve the following functions:

• The Reset button allows you to reboot the device if you experience connectivity issues.
  • Please note that you should attempt to unplug and powercycle the device first. Find out how to reset your wireless router.
• Telephone connectors allow you to connect two lines of telephone service if you have two numbers.
• Home Alarm port.
• Ethernet ports allow you to connect up to four devices (such as computers, game systems and printers) to your home network with an Ethernet cable.
• Cable Connector provides Internet service to the Wireless Gateway 3 through a coaxial cable, the same kind of cable that transmits TV service to your TV Box.
• Power Connector is for the gateway's power cord.

Top Panel

• The top panel of the Wireless Gateway 2 and Wireless Gateway 3 features the WPS (WiFi Protected Setup) button. The WPS LED button connects WPS-compatible devices to your network.

• On Wireless Gateway 3 devices you may also see a Page button on the top panel. This button is to accommodate a future enhancement that is not yet available.

Admin Tool

You can view and adjust your router and network settings - including features like Parental Controls, security settings and your Network Names (SSIDs) and Network Password (Key) - through the device's Admin Tool, which is located online at http://10.0.0.1.

Learn more about the Admin Tool. Learn about advanced wireless gateway features.

 

XB6 Wireless Gateway

Features

• 2x2 OFDM and OFDMA DOCSIS® 3.1 channels
• 32x8 SCQAM DOCSIS® 3.0 channels
• Full Capture Bandwidth Tuner
• Multi Processor Technology with ARM and ATOM based Application Processor
• 2 port Gigabit Ethernet Wireless Router
• Switchable upstream filters for 42 MHz or 85MHz operation.
• 8x8:8 Integrated Dual Band Concurrent 5GHz 802.11 ac Wave2 radios and 2x2:2 2.4GHz 802.11n for high performance WLAN 
• MoCA 2.0 (with channel bonding) for in Home Video and Data distribution over Coax 
• Multiple SSID support with DFS channels and Dynamic Channel change 
• IoT Subsytem with support for ZigBee, Thread and BTLE personal area networks 
• SD card slot
• Small form factor based on a Multi-PCB design
• Multiple operator controlled configuration options
• Designed for enhanced application support

 Wireless Gateway Device Comparison

The following table compares the Wireless Gateway 1, Wireless Gateway 2, Wireless Gateway 3 and Advanced Gateway devices.

Product Features	Wireless Gateway 1 (Model Numbers: TG852G, TG862G, TC8305C)	Wireless Gateway 2 (Model Numbers: DPC3939, TC8706C)	Wireless Gateway 3 (Model Numbers: DPC3941T, TC8717, TG1682G)	XB6 Wireless Gateway (Model Numbers: TG3482G, CGM4140COM)
Gigabit Ethernet LAN Ports	Four (4)	Four (4)	Four (4)	Two (2)
Dual Band WiFi	No	Yes	Yes	Yes
Maximum Data Throughput	150 Mbps	275 Mbps	700 Mbps	1 Gbps
WPS (WiFi Protected Setup)	Yes	Yes	Yes	Yes
Gateway and Network Management Tool (http://10.0.0.1)	Yes	Yes	Yes	Yes
XFINITY xFi Eligible	No	No	Yes (excluding TC8717)	Yes
RDK-B	No	No	Yes	Yes
Two Total Telephone Ports	Yes	Yes (separate Alarm Port)	Yes (separate Alarm Port)	Yes
Battery Backup Capability (XFINITY Voice Only)	Yes	Yes	Yes	Yes
Eligible for an xi5 Device	No	No	Yes (excluding TC8717)	Yes
Link Cordless Phones (CAT-iq 2.0*)	No	Yes	Yes	Yes
Home Hotspot Capable	Yes	Yes	Yes	Yes
Compatible with XFINITY Home	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 Resources

Learn more about the Xfinity Wireless Gateway 1 here: https://www.xfinity.com/support/articles/wireless-gateway-1?

Learn more about the Xfinity Wireless Gateway 2 & Wireless Gateway 3 here: https://www.xfinity.com/support/articles/wireless-gateway-3

Learn more about Xfinity Gateways here: https://www.xfinity.com/support/articles/broadband-gateways-userguides?

Download a User Guide

• DPC3941T User Guide
• TG1682G User Guide
• TG1682G Quick Start Guide
• DPC3939 User Guide