I can't really see why it has to be so complex here.
My ADSL modem stays on all the time.
Any computer in my home (or even neighbours') can see my WiFi network and can connect as long as correct password is supplied.
The IP address at each computer is assigned dynamically.
I have connected to multiple computers (as well as my smart phone) at same time each one running different operating system (Vista, Linux, Symbian).
Is cable broadband configuration different??
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