Oracle enterprise manager Net Services Administration refuses SYS login

Question

To configure heterogenous services for connecting to a SQL-SERVER 2005, we are trying to configure the Oracle 11gR2 database via EM.
We login using the SYS account and when we click on the listener link , Net Services Administration login page comes up, when we supply the same username , SYS , it throws out error : " Validation Error ERROR: Invalid username and/or password"
We are sure of the username and the password , if it was invalid it would be impossible to login as SYS.

Answer 1

The listener runs outside the database, and if I recall correctly when NSA prompts you it asks for the host login. You need to give the operating system credentials for a user in the DBA group.

Answer 2

Keep it simple..

Just make sure that you have logged in with admin account in your windows system. If oracle is asking for OS credentials, provide your OS credentials(your windows admin username/password). give username as "admin" and password as"your-password".

worked for me!!