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1.
Tuning – The cable
modem is functional and
searching for a
downstream cable
modem service channel
on your cable system.
2.
Ranging – The modem is
now tuned to a
downstream cable modem
channel and can now
receive data. Now it
searches for an upstream
channel so that it can send
data.
3.
Connecting – The cable
modem is now
communicating start-up
data both down-stream
and upstream.
The cable company is
establishing IP
connectivity with your
modem.
X
X
X
X
X
X
X
X
X
X
Activating the Cable Modem
X
X
X
X
X
4.
Configuring – The cable
modem received its IP
address and is
downloading its
configuration file from
the Internet Service
Provider (ISP).
5.
Registering – The cable modem configuration is complete. It is registering
its “as-configured” settings with your Cable Operator. Once complete, the
POWER (INTERNET)*, PC LINK, and CABLE (CABLE ACTIVITY)* indicators
stop flashing and remain on.
* Actual button names may vary per model.
Initialization Mode
After you install the cable modem and turn it on for the first time (and each time the modem is reconnected
to the power), it goes through five steps before it can be used. Each of these steps is represented by a
different pattern of flashing lights on the front of the modem.
Note:
All indicators flash once prior to the initialization sequence.
Legend
Off On Flashing
X
