Exchange 2007 error : Process MAD.EXE (PID=1520). Topology discovery failed

Process MAD.EXE (PID=1520). Topology discovery failed, error 0x80040a02 (DSC_E_NO_SUITABLE_CDC). Look up the Lightweight Directory Access Protocol (LDAP) error code specified in the event description. To do this, use Microsoft Knowledge Base article 218185, "Microsoft LDAP Error Codes." Use the information in that article to learn more about the cause and resolution to this error. Use the Ping or PathPing command-line tools to test network connectivity to local domain controllers.

The DC=the Exchange server
whabingAsked:
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proadminConnect With a Mentor Commented:
Try this mate, hope it helps you.

#1) At the domain controller open Active Director Users and computers.
#2) Right click on the domain container and click on properties.
#3) Click on the Group Policy tab, hi-light the default domain policy and click on the edit button.
#4) Expand the default domain policy tree: Computer configuration, windows settings, security settings, local policies, user rights assigned.
#5) In the right hand pane open the "Manage auditing and security log" policy.
#6) Click on the Add button then the browse button, then find and select the Exchange Enterprise Servers user.
#7) Restart the Exchange server and things are working again!
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Glen KnightConnect With a Mentor Commented:
Using group policy management console edit the Default Domain Controllers policy.

Navigate to Computer Configuration > Windows Settings > Security Policies > User Rights Assignment.

Find Manage Auditing Security Log and add Exchange Servers and Exchange Enterprise Servers (If available) then click OK.

Make sure you browse to enter the group names.
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whabingAuthor Commented:
As usual, you guys are great!!
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