401 Unauthorized Access is denied – Dynamics CRM | Microsoft Learn

1. Import new Cert to Machine , Make sure CRM Service account has access to Private Key
   
   Right click on Cert and Manage Private Key and Permissions
   
2. DELETE old Cert from Local Machine as it might be the same name , if you have error can’t find this cert this is what it will be

On ADFS Go to Relying Party Trusts