Authentication prompt in OUtlook

This issue is when you are able to open the CRM site in IE without authentication but are prompted to authenticate when opening in the outlook client.

To resolve this add the address (including the port if needed) to the Local Intranet Zone

CrmWRPCTTokenKey Error

I was getting an error where I was being prompted for authentication and occassionally this even crashed the app pool.

I found this great post which suggests checking that the async process is still running.

http://peitor.blogspot.com/2008/12/microsoft-crm-4-crmexception-expired.html

One of the possts also suggests that this can be connected to imported organisations and dodgy values in the config databases.

I have copied the references below (just in case this post ever gets moved etc)

#1
There is a KB article on this
http://support.microsoft.com/kb/961311/
This article says: the AsyncSdkRootDomain field in the DeploymentProperties table of the MSCRM_CONFIG database contains an incorrect value.

#2
In our case the problem was an import of an organization from another Microsoft Dynamics CRM 4.0 deployment, from Development Server to Test Server.
http://support.microsoft.com/kb/949844