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Ti8M
Ti8M
New Member
March 18, 2025
Question

Free Forticlient Ios stopped working with IOS 18.3.2

  • March 18, 2025
  • 7 replies
  • 7038 views

We have received a message from our employees that the VPN client no longer works with IOS 18.3.2. It still works on older versions or Windows clients.

 

We use the VPN with our own IDP as 2FA.

As soon as the users confirm the 2FA, we get the message with URLSessionTask failed in the app. (See photo)

image.png

 

Anyone having similar Issues?

    7 replies

    Oak6t
    Oak6t
    Explorer
    March 18, 2025

    We are seeing this same issue specific to iOS Forticlient VPN version 7.4.5.0174. SSO is now broken. Fortinet needs to address this ASAP.

      AEK
      SuperUser
      AEK
      SuperUser
      March 18, 2025

      Hi Ti8m

      Which FCT VPN version are you using? And from where did you download it?

      AEK
        Ti8M
        Ti8MAuthor
        New Member
        March 19, 2025

        Version is 7.4.5.0174

        Downloaded from the app store.

        Christian_89
        Christian_89
        Contributor III
        March 19, 2025

        This issue appears to be a compatibility bug introduced with iOS 18.3.2. The error "URLSessionTask failed" typically indicates that the FortiClient app is having trouble establishing or maintaining a network session during the VPN connection process—most notably after the 2FA confirmation via your IDP.

        What you can do as workarounds:

        Check for Updates: 
        Verify if there is an updated version of FortiClient for iOS. Fortinet may release a fix that addresses compatibility issues with iOS 18.3.2.

        Rollback Option:
        If updating FortiClient is not immediately possible, consider temporarily reverting to an earlier iOS version where the VPN client is working correctly—if that option is available and acceptable for your environment.

        Fortinet Support:
        Since this issue affects multiple users and is specific to iOS 18.3.2, raising this with Fortinet TAC or checking their community forums might provide further insights or additional workarounds.

        In summary, the "URLSessionTask failed" error on iOS 18.3.2 is likely due to changes in iOS that have impacted FortiClient's network handling, and until an official fix is released, one of the above workarounds may help maintain VPN connectivity.

          Ti8M
          Ti8MAuthor
          New Member
          March 19, 2025

          We just got this reply from one of our Users:

          For me the Version is 7.4.5.0174
          What else I have observed:
          After you press "Connect" in the FortiClient, the VPN icon appears at the top of the iPhone and at the same time you lose the Internet connection (regardless of whether it is WiFi or mobile). In this state, you cannot call up a website or use any other app with Internet access.
          According to the iPhone settings, a VPN connection is already established at this moment although FortiClient still says "connecting".

            AEK
            SuperUser
            AEK
            SuperUser
            March 19, 2025

            Maybe I missed something but Fortinet release notes are saying the latest is 7.4.2.

            https://docs.fortinet.com/document/forticlient/7.4.2/macos-release-notes/891416/introduction

            Can you try the package from Fortinet?

            https://www.fortinet.com/support/product-downloads#vpn

             

            AEK
              Ti8M
              Ti8MAuthor
              New Member
              March 20, 2025

              Thats MacOs, we are talking about Iphones which get the App from the Apple Store

              AEK
              SuperUser
              AEK
              SuperUser
              March 20, 2025

              Mea culpa, you are right.

              AEK
              mschlichter
              mschlichter
              New Member
              March 21, 2025

              We are seeing the same issue specific to iOS Forticlient VPN version 7.4.5.0174 but only with 2FA (Fortitoken).

              Without 2FA it works.

              Cinder
              Cinder
              Explorer
              March 23, 2025

              I support a utility, and they're seeing the same thing -- iOS devices that are used for "on-call" access to critical systems are no longer working with Fortitoken Mobile 2FA, forcing us to shut it off, which is a major, major, problem. 

                rforrister
                rforrister
                New Member
                April 15, 2025

                I was checking https://apps.apple.com/us/app/forticlient-vpn/id1475674905?platform=iphone and it appears there is a newer version 7.4.6 which was released last week.  The notes just state -bug fixes.  Has anyone tried the newer version, yet?

                Cinder
                Cinder
                Explorer
                April 22, 2025

                Yup, we updated our iPads.  Still broken.  We tried full uninstalls and reinstalls of the new version, no go.  Fortinet's excuse of the client being "free" and thus unsupported is such and unprofessional cop-out for paying customers with completely up-to-date and subscribed firewalls.

                rforrister
                rforrister
                New Member
                April 15, 2025

                honekgo1,

                I had a TAC case open and they stated that since it is a free product there was no support for it.

                So, I closed it this morning.  I still haven't heard back from our employees who use it.  Guess they will call when they need it.

                 

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