We use Microsoft Online Services Sign in Tool to allow Outlook to access Microsoft's BPOS online Exhange and Sharepoint services. I recently had a user reporting that the Sign in tool was reporting "incorrect username or password" even though the credentials were correct.
The solution turned out to be simply un-installing and re-installing the Sign in Tool.
I hope this may be helpful to others facing the same problem.
Waterdragon900 5 Newbie Poster
jingda commented: Very helful +5
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