NETGEAR Nighthawk CM3000 User Manual page 10

If you must share the connection, use a 3.5dB (1 to 2) splitter.
3. Connect the power adapter to the cable modem and plug the power adapter into
an electrical outlet.
The cable modem might reset multiple times when it is powered on.
4. Wait for the cable modem to come online.
The cable modem comes online when the Internet LED stops blinking and lights
solid white. This process might take up to 10 minutes.
After 10 minutes, if the Online LED doesn't light solid, make sure that the cable outlet
is working or call your Internet service provider (ISP) to make sure you have service.
Note: When the Online LED lights solid, your cable modem is not connected to the
Internet yet. You must connect a router or computer to your cable modem and then
activate your cable modem with your cable Internet provider.
5. Connect a router to your cable modem.
a. Connect the LAN port on the cable modem to the WAN or Internet port on the
router.
b. Your cable modem comes with two plugs that cover the Ethernet 1 and Ethernet
2 ports. You can remove the plugs to connect a router that supports Ethernet
Hardware Setup
Nighthawk CM3000 2.5 Gbps Cable Modem
10 User Manual