Exchange 2010 will not connect to Domain controller SBS2011 (all one box)

We have a SBS2011 box do some windows updates, God knows how but it came back up with a new self generated host name, needless to say nothing worked. The new host name was in "network and sharing center" and DNS server. a coupe of re-boot later it reverted to assigned name!!!

AD and new user creation is now all ok but the are same exchange services that will not start
Basically exchange cannot find the domain controller

DNS is all good and working or appears to be

if I run
Set-ADServerSettings -PreferredServer mpsdc01.mps.local <<<<<<<<<<<<<<<<
to point exchange i get the following

Unable to find 'mpsdc01.mps.local' computer information in domain controller 'mpsdc01.mps.local' to perform the suitability check. Verify the fully qualified domain name.

If I run
C:\Windows\system32>nltest /DSregDNS <<<<<<<<<<<<<
Flags: 0
Connection Status = 0 0x0 NERR_Succes
The command completed successfully


DCDiag passes except on the exchange tasks
         A warning event occurred.  EventID: 0x80001393

            Time Generated: 07/17/2014   19:30:44

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '5916'. The data field contains the error number.

         A warning event occurred.  EventID: 0x80001391

            Time Generated: 07/17/2014   19:30:46

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' terminated unexpectedly. The process id was '9676'. The process exit code was '0xe0434f4d'.

         A warning event occurred.  EventID: 0x80001393

            Time Generated: 07/17/2014   19:34:43

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '5064'. The data field contains the error number.

         A warning event occurred.  EventID: 0x80001391

            Time Generated: 07/17/2014   19:34:45

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' terminated unexpectedly. The process id was '4356'. The process exit code was '0xe0434f4d'.

         A warning event occurred.  EventID: 0x80001391

            Time Generated: 07/17/2014   19:36:57

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' terminated unexpectedly. The process id was '8016'. The process exit code was '0xe0434f4d'.

         A warning event occurred.  EventID: 0x80001393

            Time Generated: 07/17/2014   19:36:59

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '3928'. The data field contains the error number.

         A warning event occurred.  EventID: 0x80001391

            Time Generated: 07/17/2014   19:57:33

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' terminated unexpectedly. The process id was '9636'. The process exit code was '0xe0434f4d'.

         A warning event occurred.  EventID: 0x80001391

            Time Generated: 07/17/2014   19:57:35

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' terminated unexpectedly. The process id was '10900'. The process exit code was '0xe0434f4d'.

         An error event occurred.  EventID: 0xC0001B70

            Time Generated: 07/17/2014   20:15:01

            Event String:

            The Microsoft Exchange Forms-Based Authentication service service terminated with service-specific error %%-2147467259.

         A warning event occurred.  EventID: 0x80001393

            Time Generated: 07/17/2014   20:19:54

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '8320'. The data field contains the error number.

         A warning event occurred.  EventID: 0x80001393

            Time Generated: 07/17/2014   20:19:56

            Event String:

            A process serving application pool 'MSExchangeSyncAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '152'. The data field contains the error number.

         ......................... MPSDC01 failed test SystemLog

      Starting test: VerifyReferences

         ......................... MPSDC01 passed test VerifyReferences


The following Exchange services will not start
address book
EdgeSynch
Forms-Based-Authentication
RPC client Access
Transport

Completely stuck now
LVL 2
pforemanAsked:
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becraigCommented:
Have you tried using the Fix my Network Wizard ?


I would suggest you use that to repair the issues you are facing
To run the Fix My Network Wizard

    Open the Windows SBS Console.

    On the navigation bar, click Network, and then click Connectivity.

    In the task pane, click Fix my network.

    Follow the instructions in the wizard. You can click each potential problem that the wizard lists to get more information about the problem.
0
Sumit GuptaSystem and Virtualization EngineerCommented:
0
pforemanAuthor Commented:
Hi all I fixed this, if anybody get the same weirdness after windows update

goto

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

re-enter the "domain" and "hostname"
0

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pforemanAuthor Commented:
Regisry comparison with working SBS box
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