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okan
okan
Explorer
August 5, 2024
Question

Why is this screen popping up as soon as I connect to the network?

  • August 5, 2024
  • 6 replies
  • 2845 views

My policies are based on AD groups. I assume this screen is trying to authenticate me before I open a browser window but I can't make it load properly. I have the necessary certificates installed, if I try to browse a webpage I already get a username and password prompt and can authenticate and browse without problem. But this screen keeps popping up until I open a browser and authenticate.

 

I have set the auth portal to my fw address, installed wildcard certificate that my fw uses and also the Fortigate's certificate for SSL check and I am not getting any SSL errors at all. What am I missing?

 

ss.jpg

 

This is probably a silly rookie question, I am sorry. Any help is appreciated!

6 replies

okan
okanAuthor
Explorer
August 5, 2024

This is definitely not a hack. I am sure it's just some misconfiguration either on Fortigate or client machines.

    Hong_FTNT
    Staff & Editor
    Hong_FTNT
    Staff & Editor
    August 5, 2024

    Hi @okan,

     

    I see you are using MacOS. Does it work on a Windows computer? 

     

    Regards, 

      okan
      okanAuthor
      Explorer
      August 6, 2024

      On windows, an "action needed" notification pops up, when you click on that it's opens a browser window, asks username and password and then shows this page...

       

      win.jpg

       

      Now, clicking refresh doesn't do anything.

       

      If you type another URL after this, it opens this "Connect to a WiFi hotspot" screen.

       

      win2.jpg

       

      When you click connect it redirects too this fw authentication url but an empty page shows up

       

      win3.jpg

       

       

      But at this point you generally have internet connection...

      Hong_FTNT
      Staff & Editor
      Hong_FTNT
      Staff & Editor
      August 6, 2024

      @okan,

       

      Are you using WiFi or Ethernet? I see it is redirecting to the authentication page 'fw-xxxx'. Does it resolve to the IP address of the FortiGate? 

       

      Regards, 

      okan
      okanAuthor
      Explorer
      August 8, 2024

      Sorry for the late response. Yes, I checked settings but couldn't find the issue anywhere. I am sure I am missing something somewhere. I guess you mean captive portal :beaming_face_with_smiling_eyes: I'll check it again, maybe I'm missing something there...

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