How to impersonate a user CRM 2011 user?

Question

Server A:

1. I am having CRM (2011) portal deployed on a server.
2. There is one WCF service "Discovery.svc" which got installed and configured during installation of CRM2011.

Server B:

1. My development machine is in another domain than the CRM portal.
2. I am trying to write an ASP.NET website which expects to call "Discovery.svc" of CRM portal within the context of CRM user. For that, I have written following in web.config:

<identity impersonate="true" password="password" userName="domainname\username"/>

Currently I am running the website in the development environment only, and not in IIS (because its having IIS 5.1, so I thought to run it within Visual Studio only)

Doing this is giving me following error message:

"Could not create Windows user token from the credential specified in the config file. Error from the operating system 'Logon failure: unknown user name or bad password."

but I know my credentials are correct.

Can anyone guide me what could be wrong here?

Thanks

Answer 1

Are you adding the domain name to your user credentials? Declare the user credentials to use domain\username.