Ignition launch client jar invalid how to fix

Unable to launch ignition
Opens locally on the machie but not via VPN
ignition launch client jar invalid

This thread has a lot of troubleshooting options and solutions, but I'm linking specifically to a post with directions on how to get detailed logs to start troubleshooting: Unable to start Designer or Client ERROR "This Launch Jar Signature is invalid. Contact an administrator" - #6 by Kevin.Herron

On the firewall, I see launchclient.jar file getting denied, could that be an issue

Yes.

Thanks

You've tagged it as ignition81, ignition80, ignition79.
Is it really all three versions?

Not sure which one it is