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costasd
New Contributor II

Windows 11 22H2 update, FortiClient VPN doesn't work

Hello,

 

Today I updated Windows 11 to the new version (22H2) on 2 PCs. FortiClient VPN worked seamlessly on the previous version (21H2) but after the update it doesn't connect and gives the following message:

 

Screenshot 2022-09-28 115237.png

 

Is it a known issue with FortiClient VPN? Is there a solution?

 

Thank you in advance,

Costas

27 REPLIES 27
sbonsall

This finally was the fix for me as well!  THANK YOU JAMES!

JChitty-DG

That worked for us. Thank you James!

costasd
New Contributor II

My way of resolving this:

 

Uninstall FortiClient

Restart

Run:

ipconfig /release
ipconfig /flushdns
ipconfig /renew
netsh int ip reset
netsh winsock reset

Restart

Install the latest FortiClient version (preferably offline installer from firmware page)

InterTone

Thanks. I gave it a try but no luck. The IP address is still not passed over to the Fortinet virtual adapter.

kimrdk
New Contributor II

Try FortiClient 7.0.2.

Just had same issue, downgrading Realtek driver still didn't work. But this version worked on Windows 11.

GustavoOliveira
New Contributor

Hello people.

 

it work fine to me too.

 

thanks so much

psevca
Staff
Staff

Hello, check if KB5026372 was installed as part of the recent Win11 updates.

 

more here:

https://www.windowslatest.com/2023/05/13/windows-11-kb5026372-is-causing-a-wave-of-issues-including-...

 

regards

 

Peter 

Wordgamer22
New Contributor

I searched on every forum on internet and eventually end up fixing this by deleting the windows update cache.

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