How do I prevent my neighbours from tapping into my wireless network?

Answer 1

This what you needs;
*Change defaults(passwords, SSID)
*Enable wap or wep or any type of encription method you have.
*Enable MAC access control(put your MAC address so you can access your network(to obtain MAC go to START-->RUN-->TYPE "CMD"--> BLACK SCREEN SHOWS-->TYPE IPCONFIG /ALL-->LOOK FOR PHYSICAL ADDRESS.
*After you have turned on all security feature on(depending on AP/ROUTER) Connect to it AND then disable SSID broadcast.

for more detail contact you router vendor website or customer support, most of the time is free.

Answer 2

Enable your security WPA is the best, If you don't have it enable WEP it's better than nothing. Depending on the model of AP you have it varies on your configuration. Read your manual. Here's some info on wireless security. http://netsecurity.about.com/od/quicktip1/qt/qtwifiwepwpa.htm

Answer 3

Make sure you set your network up to use WEP, this will be explained in your owners manuals to the router and/or network cards

Answer 4

change your ssid and mark it as not broadcast, then the have to know the name of th enetwork, windows will not find it for them assign a security password or key