Here are tips to fix iOS 9 WiFi not working problem for those who have faced with such type of issues. Carrying with it bulk of new features and enhancements iOS 9 release also brought some problems as any other major iOS software update.
One of the issues users encounter while updating their iPhone to iOS 9 is Wi-Fi connectivity issues. According to users reports they are not able to connect to a Wi-Fi network, getting incorrect password prompt, speeds being extremely slow or dropping connection intermittently, Wi-Fi settings grayed out.
Tips On How To Fix WiFi Not Working Problem On iPhone
Tip 1. Force RestartLike with all tech problems, you can try to force restart your iPhone or iPad to see if it will help.
To do it hold down the Sleep/Wake button and the Home button simultaneously for at least 10 seconds, until the screen goes blank and you will see Apple logo.
Tip 2. Downgrade to iOS 8.4.1If the Tip 6 also doesn’t work then you can downgrade iOS 9 back to iOS 8.4.1. 8.4.1 signing window is still opened, so you can downgrade.
Tip 3. Set Custom DNSOften times, if your ISPs DNS servers are having problems, you can switch to Google DNS or OpenDNS.
Tip 4. Reset Network SettingsMost networking related issues users have faced with have been fixed after resetting network settings. To do it, launch the Settings app and go to Settings > General > Reset and click on Reset Network
Resetting these settings flushes caches and clears DHCP settings and other networking related information.
Tips 5. Disable Wi-Fi Networking ServicesAnother tip you can try to fix iOS 9 WiFi issues on your affected iPhone is to disable Wi-Fi Networking under Settings > Privacy > Location Services > System Services. This only relates to your location being used for Wi-Fi Networking, so it doesn’t turn off Wi-Fi entirely.
Tips 6. Restore and Setup as new iPhoneIn case all of these WiFi not working problem fix tips failed the last way is to restore your iPhone via iTunes, and set it up as a new device. Using this method you can get rid of possibly problematic customizations and settings on your iDevice.
Tip 7. Forget Wi-Fi Network and RejoinIf you’re not able to connect to a Wi-Fi Network even entering the correct password and the device says that the password you’ve entered is incorrect then try to forget the Wi-Fi network, and join the network once again.
To do it click on the Wi-Fi network from the list under Settings > Wi-Fi. Then click on Forget This Network. A popup message will ask you if you want to forget Wi-Fi Network. Click Forget option to forget the network.
After that go back to Settings > Wi-Fi, choose the network again, enter the password, and Join the network again to see if it helps.