https://live.paloaltonetworks.com/t5/globalprotect-discussions/mac-users-getting-connection-failed-unable-to-verify-certificate/m-p/522507#M3460 <P>Hi <a href="https://live.paloaltonetworks.com/t5/user/viewprofilepage/user-id/201884">@andrew-onaghise</a> ,</P> <P>It sounds like the MacOS are not trusting the server certificate used by your GlobalProtect.</P> <P>- What certificate have you used for your GP setup? Signed by public CA or it was signed by your internal PKI? Self-signed generated by the firewall?</P> <P>- After identifing the CA that was used to sign the certificate, can you find this CA in the Trusted CA certificate store on Windows users? What about the Mac users?</P> Sun, 27 Nov 2022 20:59:45 GMT aleksandar.astardzhiev 2022-11-27T20:59:45Z https://live.paloaltonetworks.com/t5/globalprotect-discussions/mac-users-getting-connection-failed-unable-to-verify-certificate/m-p/520813#M3412 <P>Mac users can connect to the Global protect, after entering in their creds they get the error "connection fail, unable to verify certificate" how ever not all users are experiencing this widows users are fine . any ideas</P> Wed, 09 Nov 2022 15:45:25 GMT https://live.paloaltonetworks.com/t5/globalprotect-discussions/mac-users-getting-connection-failed-unable-to-verify-certificate/m-p/520813#M3412 andrew-onaghise 2022-11-09T15:45:25Z https://live.paloaltonetworks.com/t5/globalprotect-discussions/mac-users-getting-connection-failed-unable-to-verify-certificate/m-p/522507#M3460 <P>Hi <a href="https://live.paloaltonetworks.com/t5/user/viewprofilepage/user-id/201884">@andrew-onaghise</a> ,</P> <P>It sounds like the MacOS are not trusting the server certificate used by your GlobalProtect.</P> <P>- What certificate have you used for your GP setup? Signed by public CA or it was signed by your internal PKI? Self-signed generated by the firewall?</P> <P>- After identifing the CA that was used to sign the certificate, can you find this CA in the Trusted CA certificate store on Windows users? What about the Mac users?</P> Sun, 27 Nov 2022 20:59:45 GMT https://live.paloaltonetworks.com/t5/globalprotect-discussions/mac-users-getting-connection-failed-unable-to-verify-certificate/m-p/522507#M3460 aleksandar.astardzhiev 2022-11-27T20:59:45Z