I suspect my neighbor is stealing my internet connection. I have a wireless router connected to my PC so I can use my laptop via wireless connection. How to I set it so when I log on with my laptop, I have to use a login and password. My wireless router is a D-LINK DI-524
Type in to your address bar: 192.168.0.1 Then edit your wireless settings with a password. I suggest you use WPA if all your wireless cards support it, its a lot more secure than WPA. Also you won't need to enter a password on your laptop all the time, You should be able to save the wireless password on your laptop, I think it does that by default. Thats an option on Vista though. This way you will always connect to it but your neighbor or whoever won't be able to unless he knows the password. Also to be more secure you can disable the SSID broadcast or Enable hidden wireless along with changing your wireless name. This way anybody that scans for a wireless will see that there is one but won't see the name of it. Also use special characters such as $ in your wireless name/password. This will make it a lot harder to hack. Hope this helped. BTW, your wireless logon by default should be user: admin, no password. If it doesn't work reset your router with the reset button on the back. Hold it for some 30 seconds.
I would also suggest hidding your SSID and using mac address filtering, if you need help with that just ask.