Well, all of you know that when you have your wifi on and phone goes to sleep, that wifi goes off in sleeping state (disconnects). I was arguing, well not arguing, lets say chating with some of MR members that they said that I'm lying etc. Now I can prove my point and two of my friends stated same because they did what i have discovered. I had this "bug" and my wifi always stayed on and conneceted when phone is sleeping. I attached screenshots where you see setting and how I set them. 1. Go to iphone settings and forget your network 2. Open browser and go to your router settings (type in browser router's adress) 3. Find and change network's name (just type anything) 4. I only have 5ghz network enabled (don't know if this would work on 2.4Ghz, but I think it should or if you have dual network enabled (2.4&5Ghz) 5. Change your network SSID to hidden or if it is already hidden change it to discoverable 6. Change password of your network P.S. If your network is hidden, when you go to iphone's wifi settings you need to go to "other", type name of your network, choose what is yours WPA security (mine is WPA2) then it'll show password, type your password and it's done. If your wifi still disconnects restart phone. P.S.S. I don't know if this should work for all routers on world but... On mine and two friends who have same router works.