|If your highspeed internet is cable:|
Coax cable goes into modem. Network cable goes out from modem to external (WAN) port of router. Client computers plug into the LAN ports of the router.
If it's ADSL:
Phone line goes into modem, everything else is the same as above.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.