Kenneth Fisher shows how to create a Microsoft Connect entry:
I recently wrote a blog about how to tell why your SQL login isn’t working. There were a lot of good comments and several of them suggested that I create a connect entry to make the error easier to understand. There was also a question of how to create a connect entry, and it wasn’t the first time I’d heard that, this week. So I’m going to give a quick demo on how to create a connect entry. I’m not going to create it using that particular login error because, as another person pointed out, this error is actually by design. We don’t want to make it easier for someone trying to hack in right?