Why can't my iphone access Wi-Fi?

I bought this iphone 3G from someone off the street and I go to Wi-Fi networks and none appear not even my own router but my internet works fine on my laptop

An I phone is more than likely AT&T and I needs to be acseced by a good hacker or an AT&T rep. I'm a good hacker my iPod has Internet any where it thinks it's an I phone anyway I it was acseced by a rep. And it still is not working try calling apple or AT&T

  • Why can't my iphone for virgin mobile iphone access the internet or transmit mms? Well in my second month with vm my internet and mms suddenly stopped working so i called vm and they told me nothing was wrong so i switched my phone for a new one and it took them three days to activate it and now i'm still having the same problem i'm wondering if anyone else are having these issues and how to solve them
  • Why can't i access my email through my iphone? Since Yahoo went down I can't get logged onto my account thru my iPhone. It keeps telling me my id and password are incorrect. It also keeps asking me for my password and won't accept it when i do enter it… Help!
  • Why can't my iPhone access the Wi-Fi from my laptop? I'm living in a college dorm with ethernet cables as my only source for internet. I just turned my Windows 7 laptop into a Wi-Fi hotspot so that I could access Wi-Fi with my iPhone. When I try to do so, the Wi-Fi name that I created shows up as an option, but when I enter the password, it says it is unable to join. Why?
  • Why can't I access my iPhone on my new laptop? I just got a new Sony Vaio Windows 8 laptop yesterday, but when I plug in my iPhone and go to 'Computer', it doesn't show up. On my other computer when I plug it in it always shows up under 'Computer' and that's how I can access the photos I've taken on there. Why isn't it working on my laptop?