Motorola SB4220 User Manual
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SURFboard Cable Modem SB4220 Series User Guide
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Cannot send or receive data
Check the lights on the front panel. Note the first light from top to bottom that is off. This light indicates where
the error occurred as described in
“Front-Panel Lights and Error Conditions”
If all lights are off except the Standby light, the cable modem is in Standby mode. Press the Standby button to
reconnect your Internet service.
If you have cable TV, check that your TV is working and the picture is clear. If you cannot receive your regular
TV channels, your data service will not function.
Check the coaxial cable at the cable modem and wall outlet. Hand-tighten if necessary.
Check the IP address. Follow the steps in
“Verifying the IP Address in Windows 95, 98, or Me”
on page 30 or
“Verifying the IP Address in Windows 2000 or XP”
on page 31. Call your cable service provider if you need an
IP address.
Check that the USB or Ethernet cable is properly connected to the
cable modem and your computer.
Problems related to unsuccessful
USB driver installation
Remove the USB driver. Follow the instructions in one of:
■
“Removing the USB Driver from Windows 98 or Me”
■
“Removing the USB Driver from Windows 2000”
Problem
Possible Solutions