First, you're not entirely clear about your situation and more info about the computer would sure help. Most importantly, it appears like you have an ethernet adapter because you mentioned the LAN connection, but do you actually have the wireless adapter installed on the computer and if so, YES, you need to have the correct wireless adapter driver installed for it. Have you checked Device Manager to make sure it's working correctly?
Next, you need more than a "modem" for wireless devices to connect to your network. The modem must also have a wireless router, either included with the modem, or as a separate device. Do you have such a wireless router and if so, have you enabled it? Do other wireless devices connect to it? If so, have you made sure the SSID is showing in the network settings. Some wireless devices won't find it if it's hidden.
Hope this helps and let us know more..
I’m trying to set up a wireless internet connection on a newly built PC with Windows 7 installed. I get a connection when I connect to the LAN but I don’t see the wireless connection from the modem when I search for available connections. I have also verified the modem to be working.
Do I need to download a separate driver for wireless connections? Or is there something else I’m missing?
Thanks for any help in advance.