Login failed for user sa crystal report

Hi Login failed for user sa In his “Troubleshooting Database Login Errors using Crystal Reports with .NET,” Eric Landes points out that he sees questions regarding the “Exception Details: CrystalDecisions.CrystalReports.Engine.LogOnException: Logon failed” message quite often in the newsgroups. That's an understatement. Since I use the “push” method (generating an ADO.NET dataset first, then setting the report's DataSource), I never saw this error, but I decided to try and replicate the problem to see why this was happening--it seems to be a popular error. I had a suspicion that impersonation and the “double hop“ (where the ASP.NET application cannot pass the user's credentials) may play a role in this problem, since the methods in Eric's article don't solve the problem for every user it should. TACS LLC Dubai Time Attendance Dubai Access Control System Gate Barrier HRMS Solutions EID Reader Software EID Reader Building Maintanance UHF Reader To replicate the problem, I used an ASP.NET project connecting to either a remote production SQL Server database or a copy of the same database on my development machine (SQL Server Developer Edition). I created a stored procedure that was just a simple SELECT statement, and used this stored procedure as my report source (“pull“ method). I probably created this report 20 different ways, testing various options, and here's what I found.