Re: netgear wifi
Caretaker - As david said, it is hard to understand with the way you explained things... First you talk about a hub, which most hubs are not wireless (which is why they sale wireless access points (similar to a hub, but for wireless/wifi)), then you talk about getting a new modem; again not wifi, or wireless, well normally, you can get the 2wire modems that also have wireless capabilities though they are not that great....
If you are talking about a router, then I suggest a few things here... Either the windows zeroconfig service is not running, the wireless NIC (network interface card) is mal-configured, the router is mal-configured, there are virus/spyware causing problems, the router's firmware needs to be flashed, or the router needs to be replaced....
The only thing that could be old may be the NIC, in which case the NIC is not able to connection with the right frequencies or channels... Otherwise, unless your laptop is from the late 1980's or early 1990's, the laptop is not the problem... Being the fact that your daughter's laptop is not working either, brings me to believe that one of the fore mentioned possibilities is what is going on..