In 802.1x configuration status is : certificate is not yet valid.
What will be issue.
I don’t recall any place in ZeroShell where the screen says 802.1x, so I’m guessing you are referring to setting up a client. I’m not 100% sure of the handshake protocol but your client machines will need to trust the ZeroShell box so you will need to install at least one certificate on each client.
If I recall correctly, I have exported the root x.509 certificate from ZeroShell and installed it as one of the trusted roots on each of my clients. The way you do that varies per operating system.