Motorola DOCSIS 3.0 SB6121 Installation Guide download pdf (Page 22)

Troubleshooting • Solutions

SB6121 DOCSIS 3.0® Cable Modem • Installation Guide 16

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Troubleshooting

If the solutions listed here do not solve your problem, contact your service provider.

You may have to reset the SB6121 modem configuration to its original factory settings if

the cable modem is not functioning properly.

Your service provider may ask for the status of the icon lights as described in Front Panel

Icon

s and Error Conditions.

Solutions

Table 1 – Troubleshooting Solutions

MODEM PROBLEM POSSIBLE SOLUTION

Power Icon is OFF

• Check that the SB6121 is properly plugged into the

electrical wall outlet.

• Check that the electrical outlet is working.

• Check that the Energy Conservation switch

is ON

(pushed in).

Cannot Send or

Receive Data

• On the front panel, note the status of the icons and refer

to Front Panel Icons and Error Conditions to i

dentify the

error.

• If you have cable television, check your television to

ensure your cable service is operating properly.

• Check the coaxial cable connection at the SB6121 and

cable wall outlet. Hand-tighten if necessary.

• Check the IP address. Follow the steps for verifying the IP

address for your system described in Configuring TCP/IP.

Call your servic

e provider if you need an IP address.

• Check that the Ethernet cable is properly connected to the

SB6121 and the computer.

• If a device is connected via the Ethernet port, check that

the ONLINE icon is ON to verify connectivity.

• Call your service provider for further assistance.

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Motorola DOCSIS 3.0 SB6121 Installation Guide Page 22