If you are getting error message such as Login failed for user 'WIN50XX$', that means your connection string is wrong.
1) Remove 'Integrated Security=True;' in your connection string. This is a common problem when someone copy their site from their local machine to our server.
2) Check your connection string against the one that's given in your hosting control panel -> Database Manager -> MSSQL Manager -> Connection String. Make sure they are the same.
Article ID: 1673, Created: May 11, 2014 at 9:20 PM, Modified: November 29 at 3:29 AM