text: You have to LOG into your router and look for that setting.  Since you did not tell us what brand, we can't give you specific instructions.\n\nIn general, if you RIGHT CLICK on your Network Places and pick Properties, then RIGHT CLICK on your Local Area Network, and pick STATUS, you can then look for the Gateway address of your connetion.   Open Internet Explorer and type in that gateway address.  That address might be 192.168.1.1\n\nThen enter the router's username and password.  In many cases, the username is admin and the password is blank.  In other cases, the username is left blank and the password is admin.   Check the manual, or manufacturer's website.  \n\nYes, you MUST use Wireless Security.  Without it, hackers that live near you can look into your computer.\n\nGood luck and Happy Computing!