RE: HELP: Exchange is losing connectivity with PDC and DNS

Did you try this article: KB272552
http://support.microsoft.com/default.aspx/kb/272552


"ITPro07" wrote:

Hi,

We are running Exchange 2003 Enterprise SP2 on Windows 2K3 Enterprise
SP2. Our exchange server becomes
unavailable randomly for 15 to 20 mins at a time. Sometime it happens
once and sometimes often
during the day. I have pasted the log entries for your review from
EMAIL and PDC1 , BDC1 and WINS server. Please help in identifying the
source of issue. Do we have misconfigured DNS or PDC or we have
network connectivity issues.


Thanks,


Rana.


We checked the logs and found numerous entries of event id 8026 (LDAP
bind was unsuccessful on
PDC. Directory returned error: Server Down (0x51)).


Event Type: Error
Event Source: MSExchangeAL
Event Category: LDAP Operations
Event ID: 8026
Date: 11/28/2007
Time: 5:14:43 AM
User: N/A
Computer: EMAIL
Description:
LDAP Bind was unsuccessful on directory BDC1.abcd.org for
distinguished name ''. Directory
returned error:[0x51] Server Down.


We also found entries of event id 2013 (SMTP service could not
connect
to any DNS). The PDC is
also DNS.


Event Type: Error
Event Source: smtpsvc
Event Category: None
Event ID: 2013
Date: 11/30/2007
Time: 2:24:35 PM
User: N/A
Computer: EMAIL
Description:
SMTP could not connect to any DNS server. Either none are configured,
or all are down.


For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.


We have found entries of following:
Event Type: Error
Event Source: MSExchangeDSAccess
Event Category: LDAP
Event ID: 2066
Date: 11/30/2007
Time: 8:31:06 PM
User: N/A
Computer: EMAIL
Description:
Process MAD.EXE (PID=292). An LDAP Notify call failed -
Server=pdc1.abcd.org Error
code=800704d5. Base DN=cn=Servers,cn=abcd,cn=Administrative
Groups,cn=ABC Inc,cn=Microsoft
Exchange,cn=Services,cn=Configuration,dc=abcd,dc=org, Filter=,
Scope=1.


Event Type: Error
Event Source: MSExchangeSA
Event Category: General
Event ID: 9153
Date: 11/30/2007
Time: 8:31:06 PM
User: N/A
Computer: EMAIL
Description:
Microsoft Exchange System Attendant reported an error '0x80004005'
when setting DS notification.


Event Type: Error
Event Source: MSExchangeIS Public Store
Event Category: General
Event ID: 7200
Date: 11/30/2007
Time: 8:18:00 PM
User: N/A
Computer: EMAIL
Description:
Background thread FDoUpdateCatalog halted on database "First Storage
Group\Public Folder Store
(EMAIL)" due to error code 0x80004005.


Event Type: Error
Event Source: MSExchangeAL
Event Category: Service Control
Event ID: 8250
Date: 11/30/2007
Time: 6:57:49 PM
User: N/A
Computer: EMAIL
Description:
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.


Event Type: Error
Event Source: MSExchangeDSAccess
Event Category: Topology
Event ID: 2102
Date: 11/30/2007
Time: 6:57:20 PM
User: N/A
Computer: EMAIL
Description:
Process MAD.EXE (PID=292). All Domain Controller Servers in use are
not responding:
pdc1.abcd.org
BDC1.abcd.org


Event Type: Error
Event Source: MSExchangeDSAccess
Event Category: LDAP
Event ID: 2066
Date: 11/28/2007
Time: 5:14:16 AM
User: N/A
Computer: EMAIL
Description:
Process INETINFO.EXE (PID=1852). An LDAP Notify call failed -
Server=pdc1.abcd.org Error
code=800704d5. Base DN=CN=Legacy GWART,CN=abcd,CN=Administrative
Groups,CN=ABCD Inc,CN=Microsoft
Exchange,CN=Services,CN=Configuration,DC=abcd,DC=org, Filter=,
Scope=0.


For more information, click http://www.microsoft.com/contentredirect.asp.


Event Type: Error
Event Source: NETLOGON
Event Category: None
Event ID: 5719
Date: 12/1/2007
Time: 6:08:02 AM
User: N/A
Computer: EMAIL
Description:
This computer was not able to set up a secure session with a domain
controller in domain ABCD
due to the following:
There are currently no logon servers available to service the logon
request.
This may lead to authentication problems. Make sure that this
computer
is connected to the
network. If the problem persists, please contact your domain
administrator.


ADDITIONAL INFO
If this computer is a domain controller for the specified domain, it
sets up the secure session
to the primary domain controller emulator in the specified domain.
Otherwise, this computer sets
up the secure session to any domain controller in the specified
domain.


For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.


Event Type: Information
Event Source: MSExchangeDSAccess
Event Category: LDAP
Event ID: 2111
Date: 12/2/2007
Time: 4:46:15 AM
User: N/A
Computer: EMAIL
Description:
Process INETINFO.EXE (PID=1876). Received LDAP error 0x52 from
Directory Server pdc1.abcd.org due to Kerberos ticket timeout.


For more information, click http://www.microsoft.com/contentredirect.asp.
================PDC1 events=======================================


Event Type: Error
Event Source: MRxSmb
Event Category: None
Event ID: 8003
Date: 11/1/2007
Time: 5:03:00 AM
User: N/A
Computer: PDC1
Description:
The master browser has received a server announcement from the
computer AH002 that believes that
it is the master browser for the domain on transport
NetBT_Tcpip_{3E8DB7F4-8D6A-45B8-82D. The
master browser is stopping or an election is being forced.


Event Type: Warning
Event Source: LSASRV
Event Category: SPNEGO (Negotiator)
Event ID: 40960
Date: 11/2/2007
Time: 10:46:24 AM
User: N/A
Computer: PDC1
Description:
The Security System detected an authentication error for the server
cifs/pdc1.abcd.org. The failure code from authentication protocol
Kerberos was "There are currently no logon servers available to
service the logon request.


Event Type: Error
Event Source: Userenv
Event Category: None
Event ID: 1058
Date: 11/8/2007
Time: 12:32:34 AM
User: NT AUTHORITY\SYSTEM
Computer: PDC1
Description:
Windows cannot access the file gpt.ini for GPO
CN={31B2F340-016D-11D2-945F-00C04FB984F9},CN=Policies,CN=System,DC=abcd,DC=-
org.
The file must be present at the location <\\abcd.org\sysvol\abcd.org
\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}\gpt.ini>. (Access is
denied. ). Group Policy processing aborted.


Event Type: Error
Event Source: Userenv
Event Category: None
Event ID: 1030
Date: 11/8/2007
Time: 12:27:34 AM
User: NT AUTHORITY\SYSTEM
Computer: PDC1
Description:
Windows cannot query for the list of Group Policy objects. Check the
event log for possible messages previously logged by the policy
engine
that describes the reason for this.


For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.


Event Type: Error
Event Source: NTDS Replication
Event Category: DS RPC Client
Event ID: 2087
Date: 11/2/2007
Time: 10:45:37 AM
User: NT AUTHORITY\ANONYMOUS LOGON
Computer: PDC1
Description:
Active Directory could not resolve the following DNS host name of the
source domain controller to an IP address. This error prevents
additions, deletions and changes in Active Directory from replicating
between one or more domain controllers in the forest. Security
groups,
group policy, users and computers and their passwords will be
inconsistent between domain controllers until this error is resolved,
potentially affecting logon authentication and access to network
resources.


Source domain controller:
BDC1
Failing DNS host name:
51f81aec-81ab-4111-8af1-96daa618a652._msdcs.abcd.org


.

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