Эта запись в блоге написана более 6 лет назад, поэтому может быть неактуальной.
OpenVPN configuration tool has a new function - Use IP addresses
Our OpenVPN configuration generator has a new option, “Use IP addresses”.
If you select "Use IP addresses", the downloaded configuration file will contain a list of IP-addresses to the servers that you selected instead of using their DNS entries. This makes your router/pc run more reliably if you are having DNS issues or your DNS is blocked.
Try it out: https://mullvad.net/download/config/