To disconnect an active VPN connection, click on the GlobalProtect icon (an icon at the notification area).
Click Disconnect.
Updating the VPN client
GlobalProtect VPN client software is updated centrally. If the client software update is available, the user gets notified about the newer version. Click Download.
After the update has been downloaded, click Install.
VPN stuck at "connecting"
When this error occurs, enable Palo Alto Networks as a trusted developer.
Open System Preferences.
Select the Security & Privacy preferences and then select General.
Click the lock icon on the bottom left of the window to make changes and modify preferences.
When prompted, enter your Mac username and password and Unlock the preferences.
Next to System software from developer "Palo Alto Networks" was blocked from loading, click the Allow button.