: Go to System Preferences > Date & Time and ensure "Set date and time automatically" is checked. 2. Verify the Portal Address in a Browser
: Ensure the certificate is not only present but marked as "Always Trust" in the macOS Keychain. Linux globalprotect vpn failed to verify certificate
In some versions (v4+), if the gateway uses an FQDN, GlobalProtect may produce this error until a proper PTR (reverse DNS) record is created. Palo Alto Networks 2. Untrusted Certificate Authority (CA) : Go to System Preferences > Date &
This disables a critical security feature. Never do this on public Wi-Fi (airports, coffee shops). Only use this as a temporary diagnostic tool. if the gateway uses an FQDN