SCOM 2012 Discovery Problem: The pool managing the instance is not available or the location monitoring object cannot be found

Hi,

I have installed SCOM 2012 on a test lab. Everything went smooth but when I tried discovery, the error "The pool managing the instance is not available or the location monitoring object cannot be found.

Here is my Environment

Server1 - Windows Server 2008 R2 SP1 - Active Directory

Server2- Windows Server 2008 R2 SP1 - SQL Server 2008 SP2 (10.0.4000.0)

Server3 - WIndows Server 2008 R2 SP1 - SCOM 2012

SQL Broker is working. is_broker_enabled = 1 using the Query SELECT is_broker_enabled FROM sys.databases WHERE name = 'OperationsManager'

I can ping the machine to be discovered. It is part of active directory, it can be resolved, firewall is off.

I am also using a domain administrator during the discovery.

Any ideas how to troubleshoot it?

Regards!