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I just installed Microsoft CRM 2011 on our webserver and I'm trying to get the CRM Outlook Plugin to authenticate to it. When I put in the server URL and click "Test Connection..." I get a dialog box that says "There is a problem communicating with the Microsoft Dynamics CRM server. The server might be unavailable. Try again later. If the problem persists, contact your system administrator." I am unable to proceed beyond this point.

Some background info:

  1. The client machine I'm connecting from is not a member of the domain (I suspect this is the problem).
  2. I am able to connect to CRM just fine via the web interface by specifying my credentials in the username/password box that pops up.
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up vote 1 down vote accepted

The problem clearly is that it is not a member of the domain, and therefore, not getting pass-though authentication when they login. You don't really say who you are connecting to, but if it is a hosted application, do they have a single-sign-on application?

If not, I looked at this briefly, and the answer is surely in this document:

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