Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Event ID:      537 Windows 2000

Posted on 2012-03-29
1
1,128 Views
Last Modified: 2012-06-27
Hi,
Hopefully someone might be able to help. I keep getting the following Audit failure on one of our Exchange boxes:

Event Type:      Failure Audit
Event Source:      Security
Event Category:      Logon/Logoff
Event ID:      537
Date:            29/03/2012
Time:            10:08:01
User:            NT AUTHORITY\SYSTEM
Computer:      SERVERNAME
Description:
Logon Failure:
       Reason:            An unexpected error occurred during logon
       User Name:      
       Domain:            
       Logon Type:      3
       Logon Process:
       Authentication Package:      NTLM
       Workstation Name:
      
This audit failure fills up the log in about a minute, which is weird to say the least.
The server is quite old, (Windows 2000 SP4 with all critical and important patches), and is one of our exchange servers and I’d a bit loathed to reboot it as it will cause a lot of paperwork.

I was wondering if anyone had come across this issue before.

I’ve had a look around on the web for similar issues, but I haven’t found one that fits the bill precisely. There are a lot of 537 events depicting Kerberos errors, but as you can see the logon process is blank. Also a few people have suggested that it might be a DC time issue, but all out DCs have the correct time and replication is A-OK.

Using Process Explorer, (by sysinternals) I think it’s the LSASS.exe process that’s the cause as it’s chewing up a load of CPU time. I’m not sure though as I can’t trace it back to the Audit failure, as you can see the logs aren’t detailed enough. I don’t want to kill it as I know it’ll probably hang the server.

Any information on how to retrieve further details on how to obtain more information about logon failures would be most grateful.

Thanks.

AD functional level 2003
DCs:             4 Win 2003 servers and 1 Win 2008 R2 server
Exchange:       3 Win 2003 servers and 1 win 2000 (SP4) server.
0
Comment
Question by:fossor
1 Comment
 

Accepted Solution

by:
fossor earned 0 total points
ID: 37782800
FIXED

Found that the IIS Service had errors on it. It couldn't see to see it's "backofficestore" in so of its objects. Stopped and restarted the IIS. The IIS objects reconnected and the Security Audit Failures stopped. All looking OK now.

Should have looked at the OWA a little sooner to be hoest... :-/
0

Featured Post

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
Find out what you should include to make the best professional email signature for your organization.
In this video we show how to create a Contact in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Contact ta…
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…

790 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question