Let's start with the most commong GAFFE. The home networker has installed a firewall before the network is up and running. Do that and you may have the network all firewalled off and it's end of the game and hand out the excedrin.
Setup pages:
http://www.wown.com/j_helmig/guide.htm
Bob
Hi. I am looking for a website with clear info on how to configure a network. I have a dlink Di-704P and the istructions are not clear. All the hardware is in place. One computer is running win 98 and the main one runs Win Me. I am looking for a-z help. What computer do i start with? What are the network set up instructions? MS help is no help...cant see network using network neighbourhood and network troubleshooter does not run. help please...cc email to rjcedar@hotmail.com

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic