Troubleshooting
The lights indicate the current status of your gateway. To troubleshoot any connection problems, use the table below.
Modem Light | Status | Problem |
Power
 | Off | No Power. Verify all cable connections and try resetting the modem. |
Solid Green | None |
Receive  | Flashing | Scanning for downstream channel is in progress. Verify all cable connections and try resetting the modem |
Solid Green | None. Connection from the computer to the internet is established on one channel. |
Solid Blue | None. The modem is operating on more than one channel (downstream bond mode). |
Send  | Off | Upstream channel is inactive. Verify all cable connections and try resetting the modem. |
Flashing | Scanning for upstream channel is in progress. |
Solid Green | None. Connection from the internet to the computer is established on one channel. |
Solid Blue | None. The modem is operating on more than one channel (upstream bond mode). |
Online
 | Off | No connection. Verify all cable connections and try resetting the modem. |
Solid Green | None. Cable modem is operational. |
Flashing | None. Scanning for configuration parameters. |
Wireless  | Off | No devices connected. |
Amber | None. WPS Pairing process is underway between the SBG6400 and a WPS-enabled wireless device. |
Green | None. Any of the following applies. - 2.4 GHz wireless connection is made between the SBG6400 and another Wi-Fi enabled device on your home network.
- The WPS Pairing process between the SBG6400 and WPS-enabled wireless device was successful.
- The WPS Pairing process either failed or did not complete after two minutes.
|
USB  | Solid Green | None. USB connection is made between the SBG6400 and a computer or other USB device. |
WPS Button
 Note: This button is located on the top of the modem. | N/A | There is no LED on the button. Note: The Wireless LED will blink Amber to indicate the WPS pairing process is in progress. |
Manufacturer Resources
For more detailed technical information on the SBG6400, use the resources below.