https://live.paloaltonetworks.com/t5/globalprotect-discussions/global-protect-mac-os/m-p/538139#M3911 <P><a href="https://live.paloaltonetworks.com/t5/user/viewprofilepage/user-id/275901">@osaman</a>,</P> <P>Apple requires that certificates not exceed a validity of 397 days to be considered valid certificates. That's always the first place I'd look if you have reports of issues with certificates on an Apple device.</P> <P>&nbsp;</P> <P>Also to be clear, when you say "one of" do you mean that only a single user is having this issue, or is all of your users running macOS encounter this issue?&nbsp;</P> Mon, 10 Apr 2023 17:10:53 GMT BPry 2023-04-10T17:10:53Z https://live.paloaltonetworks.com/t5/globalprotect-discussions/global-protect-mac-os/m-p/538083#M3907 <P><SPAN>Hi Everyone, One of our MAC OSX users is unable to connect to GP, it is giving the error " portal certificate is not signed by a certificate of authority" although it has been added as Always Trust. Please advice</SPAN></P> Mon, 10 Apr 2023 09:13:45 GMT https://live.paloaltonetworks.com/t5/globalprotect-discussions/global-protect-mac-os/m-p/538083#M3907 osaman 2023-04-10T09:13:45Z https://live.paloaltonetworks.com/t5/globalprotect-discussions/global-protect-mac-os/m-p/538139#M3911 <P><a href="https://live.paloaltonetworks.com/t5/user/viewprofilepage/user-id/275901">@osaman</a>,</P> <P>Apple requires that certificates not exceed a validity of 397 days to be considered valid certificates. That's always the first place I'd look if you have reports of issues with certificates on an Apple device.</P> <P>&nbsp;</P> <P>Also to be clear, when you say "one of" do you mean that only a single user is having this issue, or is all of your users running macOS encounter this issue?&nbsp;</P> Mon, 10 Apr 2023 17:10:53 GMT https://live.paloaltonetworks.com/t5/globalprotect-discussions/global-protect-mac-os/m-p/538139#M3911 BPry 2023-04-10T17:10:53Z