The following error can occur if the IPv6 protocol is deactivated on an Exchange 2010 server:
Process MSEXCHANGEADTOPOLOGYSERVICE.EXE (PID=2864). Error during topology detection. Error: 0x80040a02 (DSC_E_NO_SUITABLE_CDC)
Various Exchange services are then not started or remain stuck with the status "Starting". In my case, the solution was to reactivate IPv6.
Tausend Dank, hatte gerade das gleiche Phänomen auf einer frisch eingerichteten Windows Server 2008 R2 VM..
Gerne :-)