Here are some simple steps to disable IPv6 on your computer:
- Press Window and R keys on your keyboard at the same time
- In the new Run window popped up, type
ncpa.cpl, and hit Enter
- Find the interface that you are using to connect to the internet and right click it.
- In the context menu that popped up, select Properties
- Uncheck Internet Protocol Version 6 (TCP/IPv6) and hit OK
- Reboot your computer.