The Forticlient VPN is not working. No response after entering the sign in info. No error message.

[matsco]

The FortiClient VPN is not working on Window 10 PC. No response after entering the sign in info. No error message.

Tried to sign in on another laptop, it is fine and working normally.

Tried to reinstall the software, but no hope.

Current version is 7.4.2.1737

installed the Microsoft Visual C++

[dingjerry_FTNT]

Hi @matsco ,

Is it an SSL VPN connection? And is it on one FGT? If yes, do you have access to the FGT?

[matsco]

yes, it is using SSL VPN connection. We are using the FortiClient VPN software to connect with the VPN, if you are referring this. 

[dingjerry_FTNT]

Hi @matsco ,

What I mean is where did you configure the SSL VPN?  On a FGT device or a third-party product?

Because we need to run debugs over there, not on FortiClient side.

[HFI]

Same issue here. after last Windows10-Update KB5048652, Forticlient VPN 7.4.2.1737 does not connect to customers without notice..

Eventlog shows continously crashing FCBLog.exe every Minute :

Name der fehlerhaften Anwendung: FCDBLog.exe, Version: 7.4.2.1737, Zeitstempel: 0x67579bbf
Name des fehlerhaften Moduls: MSVCP140.dll, Version: 14.29.30133.0, Zeitstempel: 0x60ff28cc
Ausnahmecode: 0xc0000005
Fehleroffset: 0x0000000000013020
ID des fehlerhaften Prozesses: 0x980
Startzeit der fehlerhaften Anwendung: 0x01db4c6812067a5c
Pfad der fehlerhaften Anwendung: C:\Program Files\Fortinet\FortiClient\FCDBLog.exe
Pfad des fehlerhaften Moduls: C:\WINDOWS\SYSTEM32\MSVCP140.dll
Berichtskennung: cf13bc16-77b4-48d2-898b-4de5fb7881a8
Vollständiger Name des fehlerhaften Pakets:
Anwendungs-ID, die relativ zum fehlerhaften Paket ist:

Regards

[HFI]

Reinstalling the lastest VC-Redist helped me to get it back running

[ezhupa]

Are you using certificate authentication for your SSL VPN authentication method? 

If so can you check in any of the local-in policies if you have virtual-patch enabled?

https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-Client-Certificate-SSL-VPN-authentic...

[btan]

Since this is only affecting one machine, issue is most likely on endpoint side.

1. Uncheck any local proxy if any: Go to Internet Options > Connections > LAN Settings and uncheck Use a proxy server for your LAN
2. Disable IPv6 in Network connection setting
3. Start > Device Manager > Network adapter, check if there is duplicated FCT SSLVPN adapter, or yellow ! exclamation mark (indicating errors), usually needs uninstall.
4. check if there is known problematic Windows Update KB installed on the PC: KB5013942, KB5018410, KB2693643
can run CMD command: wmic qfe list
If there is, need to uninstall them.

Also, kindly note than if your laptop is using ARM processor, it is not supported.