Cable Modem Troubleshooting: 3COM 3CR29220 (Sharkfin)

Light patterns, images, manuals and more helpful info for the 3COM 3CR29220 (Sharkfin) cable modem –

Multifunction	Function determined by the cable provider.
Data Transfer	Flashes at a rate consistent with the amount of data transmitted over the RF interface.
Connecting/Link Status	Solid green – Modem is acquired. Flashing – Modem is not acquired.
Power	Solid green when power is applied.
LED on the Back of the modem near the power adapter (not all models)	Short Off, Long Orange flashing – Startup, power on self test. Solid Orange – Failed power on self test. Short Off, Short Orange flashing – Searching for downstream signal. Long Orange, Short Green flashing – Acquisition in progress. Short off, Short Green flashing – Modem not authorized. Solid Green – Modem is acquired.

Notes and Useful Information:

By Ross McKillop – July 5, 2006

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