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:
You must be using at least macOS 10.11 (El Capitan) to install TRU's Global Protect client
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.