IPhone 4S stopped connecting to all Wi-Fi networks?

I bought an iPhone 4S and it's been connecting to Wi-Fi fine for about three or so months. Suddenly, out of the blue, the Wi-Fi stopped working. It isn't my wireless because I've tried to connect at mates' places and at my school and the phone won't connect there either. I've checked my settings and everything and airplane mode is turned off, Wi-Fi connected etc. When you go into Wi-Fi settings, all the networks that are available to everyone else just won't show up on my phone. I tried to manually add a network which failed, I also tried forgetting all networks and manually adding it again, also without success. I have no idea what's going on and I just want to use my phone again!

I woke up this morning with the same problem. My MacBook is connecting to my Wi-Fi, but my iphone 4s won't. Quite frustrating!

  • Wi-Fi stopped connecting on apple products At the beginning of August I able to two different Wi-Fi connections. About a week ago the extension connection stopped working on both my laptop and iphone. However the other connection still works and the broken one still works for other people on their PCs. has anyone had this happen/can suggest where I should look to fix this?
  • Unlock iPhone 4 to all networks? I got an iPhone 4 locked to vodafone and i want to use it with my O2 sim card but Vodafone want to charge me £20 to unlock it! Is there anyway that i can unlcok it to any network without jail breaking? And without paying these weird websites…
  • Music and sound has stopped on all my apps on iPhone 4? My iPhone has been working fine. But recently I have lost all sound on every single app. I've checked the settings on each app and sound is switched on for each of them. My ringtones and everything else still work.
  • Asus laptop stopped connecting to the wireless router? We know it is not the router because the HP Notebook works and our iPhones work. When Windows runs a detection for errors it reports none. We have unplugged everything a few times, have hit FN F2 nothing. The only message we get is to call a friend who might know how to fix it!