You may have to Reset Network Settings on iPhone, if you are unable to fix network connectivity issues on your device using other troubleshooting methods.
Reset Network Settings on iPhone
As mentioned above, performing a Network Settings Reset on iPhone has the potential to fix WiFi, Cellular and also Bluetooth connectivity problems on iPhone.
Unlike Factory Reset, a Network Reset is not going to Erase any data from your iPhone. It only wipes out all the current Network Settings on your device and Resets them to Factory Default Settings.
This means that you will be losing all your WiFi, Cellular, VPN Network Settings and Passwords.
Hence, make sure that you note down these passwords, before going ahead with the steps to Reset the Network Settings on your device.
Steps to Reset Network Settings on iPhone
Resetting Network Settings on an iPhone is really easy and has the potential to fix network related problems on your device.
1. Open Settings on your iPhone > tap on General.
2. On the next screen, scroll down and tap on the Reset option.
3. On the Reset screen, select Reset Network Settings option.
4. On the next screen, enter your Lock Screen Password.
5. On the confirmation pop-up, tap on the Reset Network Settings to confirm.
This will immediately Erase all the Network Settings on your device and your iPhone will go back to its Factory Default Network settings.
This should help in fixing Network Connectivity issues on iPhone, if the problem was due to incorrect or corrupted Network Settings on your device.
After the Reset process is completed, you will be required to manually connect back to WiFi/Cellular Network on your device.