Our VPN does not support IPv6 during beta; please be sure to disable IPv6 if it's enabled on your system. If you are unsure, you can test via whatsmyipaddress.com or dnsleaktest.com
sudo nano /etc/sysctl.conf
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
net.ipv6.conf.wg0.disable_ipv6 = 1
First hit Control + X. Then "Y" and enter to save it.