Comcast TG852G, TG862G, SMCD3GNV, TC8305C Wireless Network Connection And Troubleshooting Tips
Wireless Network
Connection and
Troubleshooting Tips
Wireless Gateway 1
(Models TG852G, TG862G, SMCD3GNV, TC8305C)
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Wireless Gateway Placement
For best WiFi coverage, place your XFINITY Wireless Gateway in a central
location, elevated off the oor.
For best WiFi reception and minimal interference, place your Wireless
Gateway in an open area, away from:
• walls
• furniture
• metal surfaces
• halogen/uorescent lighting
• microwaves and other appliances
• windows
To learn more about your Wireless Gateway,
visit www.xfinity.com/internethelp.
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Wireless Gateway Activation
Process over WiFi
A. Plug In and Power Up
1. Connect a coax cable from your cable wall outlet to the Cable/
RFIn connection on your Wireless Gateway. Make sure this
connection is nger tight.
Note: You may only need one coax cable for your Wireless Gateway
connection, so select the length that best suits your needs.
2. If you subscribe to Comcast Voice service, connect a telephone
cord (not included) from your telephone into the Te l 1 connection on
your Wireless Gateway. The Tel 1 LED on the front panel will light up.
If you don’t subscribe to Comcast Voice service, skip this step.
3. Insert the power cord into your Wireless Gateway, and plug into an
electrical outlet.
a. The Power LED will light.
b. The US/DS and the Online
LEDs will go through a
series of blinking patterns
in order to connect to the
Comcast network properly.
DO NOT proceed until both
US/DS and the Online
LEDs stop blinking and
remain solid for at least 1
minute. Do not unplug the
Wireless Gateway during
this process.
Note: This process may take up to 20 minutes, as your device
downloads the latest rmware.
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