In my three-computer (Win-XP) home net, I have the ubiquitous WRT54G wireless router on my 'base' computer with two other personal computers wirelessly feeding off it. The AP is 'my' personal computer and it uses a commonly available, Linksys cable modem, which is getting Internet from Cox Cable. This modem feeds the above wireless router via wire which is then plugged into the base computerâ€™s Ethernet card. The two client computers are: A new HP laptop with built-in wireless and a 1 yr old (wifeâ€™s) HP desktop computer using a common Linksys USB receiver. The system works perfectly, but is configured in (almost) â€œout of the boxâ€ condition.. In other words itâ€™s almost totally hackable by even the most clumsy drive-by sniffer. Iâ€™m not trying to guard Fort Knox here, just trying to avoid doing something stupid and/or allowing the preventable. The only thing Iâ€™ve done so far is to ensure each computer has a working Windows password. And Iâ€™ve turned off the SSID â€˜broadcastâ€™ function and turned off the Universal Plug and Play (UPnP) function. Also, Iâ€™ve loaded the latest firmware (v4.20.7, Aug. 18, 2005) into the router. Obviously, Iâ€™ve snooped around in my routerâ€™s admin program, even made those modest changes. OK, pretty good so far: Naturally Iâ€™ve got the manuals on everything but the *&^ WRT54G router; donâ€™t know where it got to. The internet/Linksys sources are pretty good about laying out WHAT additional steps should be taken. Generally missing though, is a clear, step-by-step** instruction on HOW to do each modification. Also which additional steps to do first, and any critical sequencing between clients and base units. 1) I want to know how (exactly) to change my routerâ€™s password, currently â€œadminâ€. Iâ€™ll add a user name then, as well. 2) How (exactly) do I change the SSID (currently linksys) without immediately screwing up the network? Which unit first? My efforts so far have immediately caused the two clients to go dark and lost. Theyâ€™re back working again now that I retreated to the factory SSID settings 3) WEP should be enabled, prob at the 128bit level, but who among the three computers gets WEPped first? Passwords involved? Cautions? 4) MAC setting should be addressed, but how? I donâ€™t want to do 3 & 4 until I get 1 & 2 right first. Any help here would be greatly appreciated. Bill H **e.g. â€œGo to your base computer first, and open your Linksys administration program, go to the â€œsecurityâ€ tab, then the â€œfirewallâ€ sub-tab. Now type in â€â€¦..â€¦â€¦â€¦â€, etc, etc.