Troubleshooting; Front-Panel Lights And Error Conditions - Motorola SURFboard DOCSIS SB6120 User Manual

3 TROUBLESHOOTING

If the solutions listed here do not solve your problem, contact your service provider.
Before calling your service provider, try pressing the reset button on the rear panel
of the SB6120. Resetting the SB6120 may take 5 to 30 minutes. Your service
provider may ask for the status of the lights as described in
Error Conditions.
Problem
Power light is off
Cannot send or
receive data

Front-Panel Lights and Error Conditions

Light Turns Off During Startup If:
DS The downstream receive channel
cannot be acquired
US The upstream send channel cannot
be acquired
ONLINE IP registration is unsuccessful
POWER The SB6120 is not properly plugged
into the power outlet
Possible Solution
Check that the SB6120 is properly plugged into the electrical
outlet.
Check that the electrical outlet is working.
On the top front panel, note the first light that is off. This
light indicates where the error occurred, as described in
Front-Panel Lights and Error
check that the TV is working and the picture is clear. If you
cannot receive regular TV channels, your data service will
not function.
Check the coaxial cable at the SB6120 and wall outlet.
Hand-tighten if necessary.
Check the IP address. Follow the steps for verifying the IP
address for your system described in
your service provider if you need an IP address.
Disconnect and reconnect the Ethernet cable from the cable
modem and your computer to make sure it is properly
seated.
26
Front-Panel Lights and
Conditions. If you have cable TV,
Configuring
Turns Off During Normal
Operation If:
The downstream channel is lost
The upstream channel is lost
The IP registration is lost
The SB6120 is unplugged
TCP/IP. Call