Below are troubleshooting steps for the TRU Global Protect VPN.
Supported Devices & OS Versions: https://docs.paloaltonetworks.com/compatibility-matrix/globalprotect/where-can-i-install-the-globalprotect-app
TRU's GlobalProtect VPN works with Windows 10 and higher.
If you receive the following error code:
GlobalProtect Client App Version 6+ requires macOS 10.15 (Catalina) or higher as per the requirements found at the Palo Alto Networks Compatibility Matrix
If your Mac is running OS 10.14 (Mojave) or OS 10.15 (Catalina) and you do not get prompted to allow the software, you must manually do so. There is a security feature (likely a kernel extension) that is triggering the issue.