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Middel94
Middel94
Visitor III
September 22, 2025
Question

SSLVPN iOS Stuck connecting

  • September 22, 2025
  • 3 replies
  • 1096 views

Hello!
Since September 16, 2025, several customers with Fortigate 40F have been experiencing problems with SSL VPN in tunnel mode on mobile devices. The problems occur on iOS devices.
According to the Fortigate dashboard, the client is authenticated, connected, and has received an IP address. The Forticlient VPN app continuously displays “Connecting.” After several minutes, the process then aborts.

Customer uses Let's encrypt certificate 

ACME details:
Status: The certificate for the managed domain has been renewed successfully and can be used (valid since Tue, 19 Aug 2025 10:17:20 GMT).
Staging status: Nothing in staging

Issuer: C = US, O = Let's Encrypt, CN = R11

 

FortiOS: 7.4.8

Forticlient iOS App Version 7.4.8

iOS 18.6.2

 

The bug with ID 1164811 occurs for the customer.

Fortigate was updated from 7.2.11 to 7.4.8 two months ago.

 

Any help would be appreciated.

 

    3 replies

    Anthony_E
    Staff
    Anthony_E
    Staff
    September 25, 2025

    Hello,


    Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible.


    Thanks,

    Best Regards
      tbarua
      Staff
      tbarua
      Staff
      September 25, 2025

      Dear @Middel94,
      If the user appears as connected in FortiGate, do they have the required access?
      If yes, the issue may be with the FortiClient GUI application.

        thomasz
        thomasz
        Visitor III
        September 26, 2025

        Helle @tbarua,

         

        The client shows the status “Connecting” all the time. We tried to access the systems, but without success, so it shouldn't be a GUI bug. We assume that the problems are related to the Let's Encrypt certificate. We don't have any problems with Android devices. Are you aware of any other customers with similar problems?

         

        Best regards,
        Thomas

        Sheikh
        Staff
        Sheikh
        Staff
        September 25, 2025

        Hello @Middel94 ,

         

        Is it happening with a this FCT client ? Have you tried with differnet FortiClient version ?

         

        regards,

         

        Sheikh

        If you have found a solution, please like and mark it as solved to make it easily accessible for everyone.
          thomasz
          thomasz
          Visitor III
          September 26, 2025

          Hello @Sheikh,

           

          Unfortunately, we can only install one version in the Apple App Store (7.4.8).

           

          Best regards,
          Thomas (colleague of Middel94)

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