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Technicolor CGM4141



Modem Information

DOCSIS 3.1 Dual Band 802.11-AC Panoramic Wifi Gateway

32x8 channel bonding

Compatible with future speed increases.


Highest Service Level



Front View

Front Modem View
Click to enlarge.

After the cable modem is successfully registered on the network, a single white LED blinks to indicate that the cable modem is online and ready to begin the WiFi set-up process.


  • To help prevent errors during installation, connect the coax cable to a cable outlet first, then connect the power cord to an electrical outlet.
  • After connecting the modem for the first time, wait 10-15 minutes before attempting to complete the WiFi setup or get online. Do not unplug the modem from power or factory reboot the modem during the initial 10-15 minute firmware download and modem registration process.
  • When the white LED begins to blink to indicate it is registered on the network, wait for one to two minutes before begininng WiFi set-up.
  • After the WiFi is set up successfully, the LED turns to a solid white light.
  • During installation or after a factory reset, the default Network Name (SSID) and password must be changed. Until that process is done, internet access is blocked.

Back View

Modem Rear View

Click to enlarge.


The Technicolor CGM4141 has the following ports and buttons.

  • TEL 1 / TEL 2 - Connects to home telephone wiring and to conventional telephones or fax machines. TEL 1 is used for the first line of phone service and TEL 2 is for a second line of service.
  • ETHERNET - Two ports are available to connect to the 10/100/1000 Ethernet ports on your computer or other device. It is recommended that devices be hardwired if possible.
  • RESET - This is recessed to prevent accidental resets and is used to restore all settings to factory defaults. Factory resets result in the loss of all settings. To restore factory defaults, press and hold the indented Reset button for more than 10 seconds or until the front panel LED flashes.
  • CABLE - Connects the coax cable to the cable wall outlet.
  • POWER - Connects the power cord to the modem.
  • WPS - Located on the top of the modem, this button can be used instead of entering the WiFi password to connect wireless devices that support WPS to the Technicolor CGM4141. WPS works only for wireless networks that use a password that is encrypted with the WPA Personal or WPA2 Personal security protocols.

MAC Address and Network Name (SSID)

MACClick to enlarge.


MAC addresses are written as 12 digits containing both letters and numbers (0-9, A-F). A MAC address is unique. The first six characters of the MAC address are unique to the manufacturer of the device.


  • The SSID and password listed on the bottom of the device are only used to connect to the modem during the initial install or after a factory reset.
  • Technicolor recommends that a single Network Name (SSID) is used for the CGM4141 because the modem automatically chooses the best network for each connected device. Ensure all WiFi-ready devices recognize the single Network Name (SSID).


The lights indicate the current status of your WiFi modem. To troubleshoot any connection problems, use the table below.

Note: To learn more about speed tests results, see Understanding Speed Test Results.

Modem Light Color Status Problem


Black Line

No light Device is off or in Power Save Mode No power. Verify that the power supply and electrical outlet connections are secure. Also make sure the outlet is not connected to a switch.

Note: Technicolor CGM4141 Panoramic WiFi Modems that are operating on a battery back-up will not automatically recognize when AC power has been restored. The modem must be manually restarted to operate on AC power after a power outage.

Power Up
Solid Amber Initial Power Up and Boot None.


Yellow Dashes

Flashing Amber Registration None.



Flashing Green Registration None.


Red Line

Solid Red Offline Verify all cable connections and try resetting the modem.


image of blinking white led

Flashing White Not provisioned; ready for WiFi set-up Set up the in-home WiFi network.



Solid White Online None.


Blue dashes

Flashing Blue WPS Mode None.


Yellow and Green Dashes

Amber and Green Flashes Download in progress None.

Manufacturer Resources

For more detailed self-installation information on the Technicolor CGM4141, use the resources below.

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