CRM 2011 Prompts for Credentials then gives 401 error.
The following is from http://www.interactivewebs.com/blog/index.php/server-tips/ad-fs-certificate-rollover-crm-2011/ The Fix Basically the certificate automatically rolls over to a new one and ADFS won’t authenticate any more. Here are the steps that seem to fix this issue: Open windows Powershell as administrator (right click runas) Run the following commands: add-pssnapin Microsoft.adfs.powershell set-adfsproperties -autocertificaterollover $true update-adfscertificate -urgent Run the CRM
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