hi, i think i find a solution for fixed the slow/dropping wifi on iOS 8.0.2 on iPhone 5s..for now
i noticed when i deleted my iCloud account that upgrade to iCloud drive that I'm using on both my iPhone 5s and my iPad mini retina and created new iCloud account on my iPhone 5s without upgrade to drive and not sign in the same iCloud acc on my iPad..and restore again my iPhone 5s after erase and reset all settings>>change my DNS to 8.8.8.8>>turn off my cellular data..its been about 20 hours my wifi connections working just fine..
so think maybe it because of the iCloud, because i tried so many way before nothing worked
(sorry my english not very good)
thx..
i hope it will worked for anyone who tried it thx
i noticed when i deleted my iCloud account that upgrade to iCloud drive that I'm using on both my iPhone 5s and my iPad mini retina and created new iCloud account on my iPhone 5s without upgrade to drive and not sign in the same iCloud acc on my iPad..and restore again my iPhone 5s after erase and reset all settings>>change my DNS to 8.8.8.8>>turn off my cellular data..its been about 20 hours my wifi connections working just fine..
so think maybe it because of the iCloud, because i tried so many way before nothing worked
(sorry my english not very good)
thx..i hope it will worked for anyone who tried it thx