WHEN I WRITE MY HOST NAME AND PASSWORD
IN ORACLE ENTERPRISE MANAGER

ENTERPRISE MANAGER RETURN FAIL ERROR IN HOST NAME OR PASSWORD
HOW CAN I SOLVE THIS PROBLEM

1-IF U LOGGED ON BY SYS DO NOT FORGET AS SYSDBA
2-ARE U SURE ABOUT USER AND PWD?
3-DO U LOG IN A HOST IN TNSNAME FILE? OR OEM LIST?

You have to provide the 'Log on as a batch job' privilege:

1. Go to control panel/administrative tools
a. click on "local security policy"
b. click on "local policies"
c. click on "user rights assignments"
d. double click on "log on as a batch job"
e. click on "add" and add the user that was entered in the "normal username" or "privileged username" section of the EM Console.

2. Go to the Preferences link in the EM GUI
a. click on Preferred Credentials (link on the left menu)
b. under "Target Type: Host" click on "set credentials"
c. enter the OS user who has logon as a batch job privilege into the "normal username" and "normal password" fields

3. Test the connection
a. while in the Set Credentials window, click on "Test"

طريقة الاخ clever_eng سليمة تماما كنت اعاني من هذي المشكله وبعد ما سالت اعطوني نفس الحل وجربته واشتغل عندي