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Microsoft® SharePoint® Designer 2010 Unleashed by Kathy Hughes

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Authentication Problems

A typical error message when you attempt a connection to open an External List in the browser is the following:

Login failed for user "NT AUTHORITY\ANONYMOUS LOGON" while browsing to external list.

This issue often occurs when users are trying to pass authentication credentials through to an external system via SharePoint. This is due to the troublesome double-hop issue described earlier in this chapter in the Secure Store application section. If you need to pass credentials through to an external system, you have a couple of options. Either use the Secure Store to pass the login credentials, or pass the credentials of the BCS application service account. To change the authentication to the BCS Service application service ...

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