[Help] FortiClient VPN disconnecting after ~25 seconds (Windows 11)

[rlvitorino]

Hi everyone,

I'm experiencing a recurring issue with FortiClient VPN (version 7.4.3.1790) on Windows 11 Professional.

The VPN connects successfully, but approximately 25 seconds after the connection is established, it drops automatically without any user action.

Looking at the logs, I see messages like:

WSAEnumNetworkEvents FD_CLOSE (10053)
Failed to connect to SslvpnDaemon

Things I’ve already tried (unsuccessfully):

• Full uninstall and clean reinstall of FortiClient (including registry cleanup)

• Disabling IPv6

• Trying different internet networks

• Updating Windows to the latest version

• Checking firewall and antivirus settings

Is anyone else facing the same issue or has found a workaround or permanent fix? Any help is greatly appreciated!

Thanks in advance!

[funkylicious]

i would suggest trying with a previous FCT version, either from 7.2.X release or 7.4.1/.2