alleviate your iOS 9 Wi-Fi issues.
If you run into Wi-Fi problems on iOS 9, you’ll want to reset your Network Settings. To do this, head into Settings > General > Reset > Reset Network Settings. This process can take a few minutes to complete and after it’s done, your device will have forgotten known Wi-Fi passwords so make sure you have your password handy.
If that doesn’t solve your issue, forget your Wi-Fi networks and reconnect to them. To get that done, go into your Settings > Wi-Fi > Select your connection > Tap Forget this Network at the top of the screen. Reconnect if you can.
If those fixes don’t work, take a close look at your router. We recommend unplugging it for a good minute or so then plugging it back in. If that doesn’t help, see if there is a firmware update for your router. Each router is different so you’ll need to consult your manual on how to do this.
If none of these fixes work for you, you can head to google for some other potential fixes but note Apple’s also got its own guide available as well. so thats also a good place to continue
please feel free to let use know when itb works for you or the method you use