After upgrading to the latest version of GlobalProtect, I have been trying to resolve this for days. Here's some additional info:
I see that others resolved similar issues by upgrading the MacOS (e.g. https://live.paloaltonetworks.com/t5/general-topics/global-protect-showing-quot-connecting-quot-and-...), but I have some software that will stop working if I do so (and I'm not quite ready to spend the money for that yet). Any suggestions would be appreciated. Thanks!
These sort of things can get kind of tricky to troubleshoot, but the warning that you are getting is tied to GP not being able to load the required kext. The next step would be booting into recovery mode and attempting to spctl kext-consent add command that you already appear to have tried and didn't work. The one thing that I'll add to that is that you'll actually need to uninstall and re-install GlobalProtect once you've ran that command generally to get that to function correctly once it's been ran. Not sure you've done that.
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