Your explanation is very vague and disjointed.
Is this your home?
What kind of connection do you use now (wired if so what type).
What do you mean by main hub??
Who is your ISP
Did they provide a modem.
What is the modem hooke up to--
Ain't nuthin but the blues! "Albert Collins".
Leave your troubles at the door! "Pepe Peregil" De Sevilla. Just Don't Wifi without WPA, "Yul Brenner"