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Microsoft Dynamics CRM (Archived)

CRM 2011: HTTP Error 401 - Unauthorized: Access is denied

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Posted on by 147
Hello

We have a CRM 2011 on premise system which was working fine until friday.

When I try to access it today it keeps popping up with the login box and then I get this error and not able to login.

Error: CRM 2011: HTTP Error 401 - Unauthorized: Access is denied

Could you help me please?


Thanks
AB


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  • Community Member Profile Picture
    Community Member Microsoft Employee on at
    RE: CRM 2011: HTTP Error 401 - Unauthorized: Access is denied

    Hi There

    Try with HTTPS

  • user123 Profile Picture
    user123 147 on at
    RE: CRM 2011: HTTP Error 401 - Unauthorized: Access is denied

    Hi 

    I have resolved this now.

    I had to restart ADFS, re configure Claims based authentication and restart CRM services.

    Thanks

    AB

  • Suggested answer
    Kokulan Profile Picture
    Kokulan 18,052 on at
    RE: CRM 2011: HTTP Error 401 - Unauthorized: Access is denied

    It would better if you could provide the details Radu asked as that will help to narrow down the possible causes for the issues, however, please see the following 

    First thing I would check if your AD password expired and make sure that's not the issue

    If you still have the issue,  for but I had the similar issue and restarting the server and then doing an IIS Reset fixed the issue.

    If you still have the issue, your AD or ADFS settings have changed or services are not working

    If you could check the Event Viewer log and CRM trace logs and share the details here, we should be able to help

    Hope this helps

  • Radu Chiribelea Profile Picture
    Radu Chiribelea 6,667 on at
    RE: CRM 2011: HTTP Error 401 - Unauthorized: Access is denied

    Hello,

    Do you see any errors in the event logs when accessing the CRM Organization?

    Are you using Claims Based Authentication or Windows Authentication?

    Regards,

    Radu

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