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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / BC 26.1 OnPrem, Androi...
Small and medium business | Business Central, N...
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BC 26.1 OnPrem, Android Chrome Access to Phone client, Antiforgery token validation failed

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Posted on by Badaboom 65
Trying to access our environment with chrome on android automatically logs me off everytime.
 
Thats the issue, what can the problem be? 
 
 
On Chrome on the windows pc its working without any problem.
 
Category: Microsoft.Dynamics.Nav.WebClient.QueryBasedAntiforgeryProtectionMiddleware
EventId: 0
ConnectionId: 0HNDCQSDLVDSJ
RequestId: 0HNDCQSDLVDSJ:0000001C
RequestPath: /xxx/csh
MemberName: Invoke
FilePath: s:\repo\src\Platform\Client\Web\Prod.Client.WebCoreApp\Middleware\QueryBasedAntiforgeryProtectionMiddleware.cs
LineNumber: 57
ExceptionType: Microsoft.AspNetCore.Antiforgery.AntiforgeryValidationException
 Antiforgery token validation failed
Exception: 
Microsoft.AspNetCore.Antiforgery.AntiforgeryValidationException: The required antiforgery cookie ".AspNetCore.Antiforgery.47DEQpj8HBQ" is not present.
   at Microsoft.AspNetCore.Antiforgery.DefaultAntiforgery.ValidateRequestAsync(HttpContext httpContext)
   at Microsoft.Dynamics.Nav.WebClient.QueryBasedAntiforgeryProtectionMiddleware.Invoke(HttpContext context) in s:\repo\src\Platform\Client\Web\Prod.Client.WebCoreApp\Middleware\QueryBasedAntiforgeryProtectionMiddleware.cs:line 53
Categories:
Dynamics 365 Business Central
I have the same question (0)
  • Suggested answer
    Sohail Ahmed Profile Picture
    Sohail Ahmed 11,150 Super User 2025 Season 2 on at

    1. Clear Android Chrome's Site Data for your BC URL (Most Effective):

       

      • On your Android device, open Chrome settings.

      • Go to Site settings -> All sites.

      • Find your Business Central URL (e.g., https://yourserver/yourinstance).

      • Tap on it and select Clear & reset or Clear data.

      • Crucially, fully close Chrome and re-open it before trying to access BC again.


        •  

    2.  

      Verify Cookie Permissions for your BC URL in Android Chrome:

       

      • In Android Chrome, go to your Business Central login page.

      • Tap the lock icon or "i" icon in the address bar.

      • Select Site settings or Permissions.

      • Ensure that Cookies are set to Allow for your Business Central site. Also check if any other permissions are overly restrictive.


        •  

    3.  

      Try Incognito Mode on Android Chrome:

       

      • Open an Incognito tab and attempt to log into Business Central. This bypasses many standard browser settings and can help determine if it's a profile-specific issue.


        •  

    4.  

      Disable "Block third-party cookies" (temporarily for testing):

       

      • In Android Chrome settings, navigate to Site settings -> Cookies.

      • If "Block third-party cookies" is enabled, try disabling it temporarily. Although the antiforgery cookie is typically first-party, some configurations can cause misinterpretation.


        •  

    5.  

      Restart the Android Device: A full device restart can sometimes resolve temporary glitches affecting app and browser behavior.



      6.  

    This issue is a specific interaction between Business Central's web client architecture and Android Chrome's security/cookie handling, not a fundamental .NET problem on the server side (as Windows Chrome works).

    ✅ Mark this answer as verified if it helps you.

  • Suggested answer
    YUN ZHU Profile Picture
    YUN ZHU 95,765 Super User 2025 Season 2 on at
    Does this problem occur when using the mobile app?
    This may also be a Chrome issue. Try another browser, such as Edge.
     
    Hope this helps
    Thanks.
    ZHU
  • Verified answer
    Badaboom Profile Picture
    Badaboom 65 on at
    Chrome Version on the Android device was not actual.
    After updating it, it works

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