wifi issue for iphone 5
i own iphone 5 with latest ios 8.1.1 but have a wifi issue. i have a iball baton wirless+router but my phone dosnt connect to it. it goes for connected and back to choose a network and again back to connected and the process goes on. plz help me on this as have followed many steps as switching on and off and checking all other settings
iPhone 5, iOS 8.0.2