Home FAQ The VPN does not work after the operating system update PT Target Audience: Iscte CommunityDescription: The VPN was working before and stopped working.Probable Cause:Temporary incompatibility after updateOutdated GlobalProtect clientAnswer/Solution:Restart the computerUpdate or reinstall GlobalProtectCheck specific instructions on the Iscte websiteFurther Information:Click here Related Previous I can't use the VPN on a Mac with an old version of MacOS Next I can't install the VPN on my computer