Wireless networks are awful to setup. Some amazing technology ruined when it comes to creating instructions. I've only realised today my network was not secure. I had a password on it, but I used a WEP key (default for the majority of routers). I look at my neighbours connections, and 4/5 off them are not secure.
Maybe yours isn't? Do you even use a password and with what kind of encryption
?
I just want to find out.