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

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Posted on by user123

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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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Radu Chiribelea 6,667 on at

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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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Kokulan 18,054 on at

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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

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user123 147 on at

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Hi

I have resolved this now.

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

Thanks

AB

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Community Member on at

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Hi There

Try with HTTPS

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