I have read many of the posts about poor wifi signals and drops. My issue is that my brand new 16GB 6 cannot even find any networks, including mine. I live in a town home and there must be 12 different wireless routers (all of these show up on my wife's iphone 4s IOS 7). Her phone is fine. However, sometimes when I turn on my wifi, nothing shows up. I'll try a few minutes later, and they all show up. I've tried everything that I could try that I found online: restarting and resetting my router, resetting my network settings, and restarting my phone. Any other suggestions or did I get a lemon?