Missing external certificate on MacOS when to startup openvpn

Issue

Error: missing external certificate
OS version: macOS 12.4
OpenVPN version: 3.2.7 (3220)

After import openvpn the .ovpn config file ,trying to start it. There is a error message “missing external certificate”. Fortunately, I ignored this error and the openvpn application still works. I don’t like having an error message pop up every time I run the OpenVPN.

Soulution

Add following two lines into .ovpn config. Once the import is successful, there is no problem running it again.

reneg-sec 0
setenv CLIENT_CERT 0