Please check this threads and revert...I hope it will be work.
https://www-secure.symantec.com/connect/articles/best-practices-ad-integration-sepm.
OR....
Check with this link
http://www.symantec.com/business/support/index?page=content&id=TECH104726
OR...
Step A - Add the Active Directory Server to the SEPM:
- Login to the SEPM
- Click Admin > Servers
- Right-click your SEPM's name (top-left)
- Click Edit Properties
- Click Directory Servers > Add
- Enter a name to identify your Active Directory server
- Select Active Directory next to Server Type
- Enter the Active Directory server hostname or IP address
- Enter a username and password that the SEPM can use to communicate with the Active Directory server
- Click OK. The SEPM will test the Directory Server information which was entered to confirm it works properly.
Step B - Create a new SEPM Administrator account:
- Login to the SEPM
- Click Admin > Administrators > Add Administrator
- Enter a username for the new administrator account. This will be the username used to login to the SEPM.
- Enter a full name for the new administrator account. This is used for informational purposes only.
- Leave the Password and Confirm Password fields blank
- Click Change
- Select Directory Authentication
- In Directory Server, select the Active Directory server configured in Step A-6
- In Account Name, enter the account name as it appears in Active Directory
- Click OK
- Click OK
Testing the newly created account:
- Logoff the SEPM if logged in
- Use the username entered in Step B-3. Usernames are case sensitive.
- Use the Active Directory password for the Active Directory account specified in Step B-9.
- Leave the Domain field blank. (This field expects a SEPM domain and not an Active Directory domain)
Regards,
Ambesh SHarma