- Open a terminal window.
- Issue the command sudo nano /etc/sysctl.conf
- Add the following at the bottom of the file:
net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1
- Save and close the file.
- Reboot the machine.
