Visitor III

Question

VPN authorization error:session expired in FortiClient iOS

Forum|Forum|1 year ago
July 31, 2025
6 replies
1632 views

Hi All,

I have a user who uses FortiClient on iOS. For the past three months, they haven't been able to connect to the SSL VPN, receiving a 'VPN Authorization error: session expired' message. I've tested FortiClient on Android and Windows devices, and both connect without issue. The user's iOS version is 18.5, and their FortiClient version is 7.4.7.0183, FortiGate version is v7.4.8

Any idea for this case?

Thank you

SuperUser

Hi Adiday

Can you try older version like 7.2.x or 7.0.x?

AEK

Staff & Editor

Hello @adiday

Could you confirm, your IPsec on the IOS is not conflicting with any limitation:

https://docs.fortinet.com/document/forticlient/7.4.0/ios-administration-guide/189805/ipsec-vpn

https://docs.fortinet.com/document/forticlient/7.4.0/ios-administration-guide/914561/remote-access

adidayAuthor

Visitor III

Hello @AEK How could I download previous version for iOS? because I don't think it is available in App Store

Thank you

SuperUser

You can download it from support portal: https://support.fortinet.com

You need to login and you may need a valid contract.

AEK

adidayAuthor

Visitor III

Hello @AEK ,

Thank you, I can find there are versions for Mac but I can't find for iOS. Do you have another suggestion?

Thank you

adidayAuthor

Visitor III

Hello @sharmar , confirm that SSL VPN and IPSec in iOS aren't conflicting with any limitation

Thank you

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