Today one of friend told me that he is facing the problem like "Report Services Login Screen Appears" while trying to deploy the report. Even it is not accepting after enter the proper credential.
I found the error that "TargetServerURL" path is invalid. It contains only http://localhost/
It is working after changed as http://localhost/ReportServer
Now if we deploy the report, it is working fine.
Sometimes problem may be,
1.http://localhost:81/ReportServer – Port Number
2.http://localhost/reportserve$SQL2005 – Different Instance
If the "TargetServerURL" is proper, then it works fine. If you are deploying the report on server from your system, if you enter the proper credential then it will work!