NETGEAR CG814M Wireless Cable Modem Gateway CG814M CG814M Reference Manual page 89

You must have an Ethernet adapter, the TCP/IP protocol, and Client for Microsoft Networks.
Note: It is not necessary to remove any other network components shown in the
Network window in order to install the adapter, TCP/IP, or Client for Microsoft
Networks.
If you need to install a new adapter, follow these steps:
Click the Add button.
a.
Select Adapter, and then click Add.
b.
Select the manufacturer and model of your Ethernet adapter, and then click OK.
c.
If you need TCP/IP:
Click the Add button.
a.
Select Protocol, and then click Add.
b.
Select Microsoft.
c.
Select TCP/IP, and then click OK.
d.
Preparing Your Network
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
C-3