FortiClient VPN only with Windows 11 24H2 issue?

[aqeela]

Anyone experienced issues with FortiClient VPN not working on Windows 11 24H2? I have no issues on Windows 11 23H2. I've tried various versions with no luck connecting with stability. There is a lag once reaching 95-98%, hangs, then connects but disconnects immediately after. So far rolling back windows 11 23h2 is only fix so far. 

PS. Foritnet support has denied of any issues with windows 11 24h2.

Current FortiClient 7.2.4

Any suggestions?

[FortinetDF]

Are you guys running S1 as well?

[aqeela]

Yes we are running S1 as well version 23.3.3.264

[FortinetDF]

We spoke to S1 and they asked us to upgrade the S1 Client (We were on the same version as you)

We upgraded to version 24.1.4.257 and that appears to have resolved the issue.

[aqeela]

We just started rolling out this version on select machines. I will attempt S1 24.1.4.257 on Windows 11 24H2. Thank you for the insight.

[INT1]

what i would advice is use the latest version of forticlient download vs C++ 2015-2022 redistributable 

after that mke sure that there is no saving for the SSO in the credentials manager windows credentials, if there is any saving make sure to delete it and try again to connect.

[ericackermans]

Same problem experienced. Solved it today by installing the latest MS Visual C++ Redist. Available at: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist

[FRoGito]

Yep, same stability issue here since the W11 24H2 upgrade... Seems more stable over RJ45 than Wi-Fi, but even when it gets stable [which is pretty rare] I often have DNS issues then.