|What you should have done is kept the TWC modem which I gather also allows you to connect a fax machine. Then you should have purchased a wireless extender instead of a new modem.|
The wireless extender can be placed midway between the TWC modem and the furthest PC station so that wifi signal reaches it better.
Wireless extender can be any make, it doesn't have to be the same brand as the wireless modem you are going to use it with.
You can get them from Amazon or other online stores, or computer stores in retail parks.
message edited by phil22