Connecting an additional computer to an Actiontec MI424WR wireless network in Windows 7
If you purchase a new computer or bring a laptop home from work, you will likely want to add it to your existing wireless home network. You may also want to connect your laptop to a Wi-Fi hotspot or to a wireless network in a motel when traveling.
If you have Verizon's In-Home Agent, adding a computer to your wireless home network is easy. You can attach it to your network with an Ethernet cable and run In-Home Agent. If you have a USB thumb drive, it's easy to transfer your network settings to your new computer.
Note: Your network must have at least one computer connected to it and you must be able to access the Internet before you can connect additional computers.
Does the computer you are adding to the network have a wireless adapter installed?