One day, out of the blue my iPhone 4S randomly lost my routers information. I did not select to forget it, nor did I change any settings within my router. I have attempted, time and time again to input my routers information and I always get the error "network not found". However, my laptop, iPad, iPod touch, my husband's iPhone 5s, and my old iPhone 3 can all connect (though usually only the laptop and both active cell phones are the only 3 things connected). Even when I forget the network on my other apple devices, I can still find my router. I can even input the information and not get the "network not found" error. I have tried many fixes such as turning off/on my wireless option, turning off/on my phone, letting my phone die then charging it and restarting it, I have tried restarting/resetting/renaming my router, using a different router, I have tried resetting my phones settings, I have tried renaming my phone, I have tried multiple combinations of all these things- basically I have tried everything I can think of, short of physically tampering with the phone, but nothing has helped.
I can connect to my neighbors' networks, I can connect to any other network but my home. I can even pick up my new wireless printer that I just installed (after my phone derped out on me), but not the home network itself! I'm seriously at a loss. It's not as if my phone can't pick up wireless, as it has no problem with any other wireless network and all other devices can connect to home.