We original have 2 domain controller both running windows 2000,sp4 , one is the pdc,
now we build a new server with windows 2003 r2, sp1 and promote it as our new pdc, I transfer all fsmo roles to the new server already
make it as global calalog list already, now we shutdown our old pdc (win2000), on our exchange server we using exchange server 2003 with sp2
I changed the domain controller in the recipient update service to the new one and rebuild the list already, if check in exchange system manager on the exchange server domain controller list, all DC,GC and config (auto) pointing to the new PDC,
I got this error like every 2-3 hour then it return to normal the I got this error again while this error occured the email unable to send out,
"LDAP Bind was unsuccessful on directory DOMAIN1.com for distinguished name ''. Directory returned error:[0x51] Server Down. "
I checked our server it's running ok,
another one is
Process MAD.EXE (PID=1608). All Domain Controller Servers in use are not responding:
DOMAIN2.com << this one running windows server 2000, it's a dc, with gc
I also get this error in the event log
Process IISIPM09EB298D-66A4-41D6-8489-FFBA6E6F2B58 -AP "EXCHANGEAPPLICATIONPOOL (PID=5836). Topology Discovery failed, error 0x80040a02.
another one I got is
The Win32 API call 'DsGetDCNameW' returned error code [0x54b] The specified domain either does not exist or could not be contacted. The service could not be initialized. Make sure that the operating system was installed properly.