Fix the connectivity issues after upgrading to iOS 13 or later

If you’re experiencing connectivity issues after upgrading to iOS 13 or later, try the following:

1. Click HOME >> Settings >> System >> Detail information >> Wi-Fi .
2. Long press the entry of the iPhone hotspot and then select “Modify network” from the popup menu.
3. Click “Show advanced options”.
4. Change IP settings from DHCP to Static.
5. Set IP address to 172.20.10.2, gateway to 172.20.10.1 and DNS server to 8.8.8.8.
6. Now the Internet connection should work properly.