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AnonymusUser
AnonymusUser
New Member
February 11, 2025
Solved

Forticlient VPN IPsec connection issue

  • February 11, 2025
  • 3 replies
  • 4992 views

Hi there, I'm encountering problems with the newest FortiClient VPN application. The primary problem is that after hitting the connect button, it displays "Disconnect," yet when I verify the IP, I'm aware that it's not connected.

Best answer by AnonymusUser

Hello, in response to this message regarding the solution: the user we attempted to  log in was deactivated in the firewall configurations. Thus, we facilitated access for him, and he logged in effortlessly right away.

3 replies

AEK
SuperUser
AEK
SuperUser
February 11, 2025

Hi

  • Which FortiOS version on the remote FGT?
  • Do you have admin access on the remote FGT?
  • Is your client Windows 11?
  • Are you connecting over WiFi?
  • In case it is Windows 10, did you try installing MS Visual C++ Redistributable?
  • Can you check the FCT logs to see if any relevant log is shown?
AEK
    AnonymusUser
    AnonymusUserAuthor
    New Member
    February 12, 2025

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    AnonymusUser
    AnonymusUserAuthor
    New Member
    February 11, 2025

    FortiOs version is : 7.0.17
    Yes im the admin
    my client is windows 11
    im connecting over wifi yes 
    yes i did downloaded and installed the MS Visual
    yes i will check and upload it

    AEK
    SuperUser
    AEK
    SuperUser
    February 12, 2025

    Hi

    There are many issues reported regarding "Windows 11 + WiFi + FortiClient VPN".

    Usually it is due the the driver. And sometimes changing the WiFi driver can fix the issue.

    You can confirm if it caused by the WiFi driver by trying a VPN connection through the Ethernet link instead of WiFi.

    If it is confirmed then the following could fix the issue.

    • Install FortiClient VPN 7.4.2 instead of 7.4.0. You can download it from support portal but you need an valid contract
    • Update your WiFi driver, otherwise downgrade it, otherwise change it if possible
    • Try with other WiFi adapter, like USB WiFi adapter
    AEK
      AnonymusUser
      AnonymusUserAuthor
      New Member
      February 13, 2025

      So eventually after installing Forticlient 7.2.8 the issue got resolved. 

      With a new user the new issue i have is that after it connects it drops the internet. 
      Do you think you can provide me any helpful tip for this case ?

      AEK
      SuperUser
      AEK
      SuperUser
      February 13, 2025

      Do you mean there is no internet connection anymore but the VPN still up and working?

      If so then you may have one of the following :

      • you are in full tunnel mode, i.e.: VPN has injected a new default gateway through the tunnel
      • or VPN has injected a new DNS server IP to your client

      Can you check this?

      AEK
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