Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'

Question

why this error comes?

I am using windows authentication. But i am getting error

Login failed for user \'NT AUTHORITY\\ANONYMOUS LOGON\'

can any one help

Answer 1

Most likely it means you're trying to connect from an impersonated context and you did not set up constrained delegation. See Manage Kerberos Authentication Issues in a Reporting Services Environment for details and troubleshooting.