Cable Modem Troubleshooting: High Speed Surfing SM100

Solid – Modem is receiving power.
Flashing – Modem self diagnostics in progress.
Off – Modem is not receiving power.

Off – Downstream RF carrier is not present or power is off.
Flashing Slowly – Downstream RF carrier is present and ranging in progress.
Flashing Rapidly – Registration in progress
Solid – Modem is acquired.

Off – No ethernet carrier present or power is off.
Solid – Ethernet carrier is present.

Flashes in sync with data transmission through the cable modem.

Test

Off – Initial self test is OK or power is off.
Flashing – Initial self test in progress or modem image downloading.
Solid – Failure of self test.

Notes and Useful Information:

Installation and User Manual

Manufacturer Product Website