Exchange 2003, 2007 & 2010 Topology discovery failed, error 0x80040a02 (DSC_E_NO_SUITABLE_CDC)

A client has been struggling with Exchange 2003 for some time now and I’ve got the project to roll out Exchange 2010. The first hurdle I come to is a new incarnation of a pre-existing problem from Exchange 2003 – simply put “Can’t find a domain controller”. Which means it can’t mount the Information Store. Brill.

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