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 has the potential to fix WiFi, Cellular and also Bluetooth connectivity problems on iPhone.
Unlike a Factory Reset, performing a Network Settings Reset is not going to Erase any data from your device. It only wipes out the current Network Settings and Resets them to original Factory Default Settings.
This also means that your WiFi Network Password will be erased and you will be required to rejoin WiFi Network by entering the WiFi Network Password.
Hence, make sure that you note down the Password for your WiFi Network, before going ahead with the steps to Reset Network Settings on your device.
Steps to Reset Network Settings on iPhone
All that is required to Reset Network Settings is to go to Settings > General > scroll down and tap on the Reset.
On the Reset screen, select Reset Network Settings option.
If prompted, enter your Lock Screen Password. On the confirmation pop-up, tap on Reset Network Settings to confirm.
This will immediately Erase all the Network Settings on your device and your iPhone will go back to its Original Factory Default Network Settings.
After the Reset process is completed, go to Settings > WiFi > select your WiFi Network > enter the Password to join your WiFi Network.
Hopefully, this should help in fixing internet connectivity issues on your iPhone.
