Exception when deploying to IIS: Login failed for user 'IIS APPPOOL\DefaultAppPool'

Question

I\'m working through some WCF examples in \"Windows Communication Foundation 4 Step By Step\". My resulting application runs fine as long as the service is hosted in casini.

Answer 1

I had the same problem. Issue was that I had "IntegratedSecurity=True;" in my connection string but I was using sql authentication and passing in credentials at the same time. I removed the IntegratedSecurity piece and everything worked.