Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

LDAP Bind error(8026), that is shutting down Exchange at random times for about 20 min. a day.

Posted on 2008-10-24
3
Medium Priority
?
378 Views
Last Modified: 2013-12-24
I've inherited an Exchange server that is shutting down at random times during the day.  The event log shows a MSExchangeAL error, Event ID: 8026.  "LDAP Bind was unsuccessful on directory w2003srvr1.local.wavetec.net for distiguished name ". Directory returned error:[0x51] Server Down.  (This error toggles between both DCs w2003srvr1 and w2003srvr2)
This error happens about 10 times a SECOND, for between 10 to 30 minutes and then it spontaneously resolves itself.  While this is happening, I can still ping the mail server; I can still ping the DC's from the mail server.
I have checked the RUS and FSMO roles.  All looks correct, but I can elaborate if necessary.
Exchg-LDAP-errors.pdf
0
Comment
Question by:GregShires
  • 2
3 Comments
 
LVL 14

Expert Comment

by:dfxdeimos
ID: 22798815
Have you tried the steps listed in the 'Resolution' section here:

http://support.microsoft.com/kb/272552/en-us
0
 

Author Comment

by:GregShires
ID: 22798897
Yes.  The RUS is pointing to w2003srvr2, which is the DC/GC.  That's not the issue.
0
 

Accepted Solution

by:
GregShires earned 0 total points
ID: 22852887
After speaking with Microsoft, there were two errors found in the Server Setup.  Both the DC and the Mail server had external DNS servers hard coded into the TCP/IP settings.  They are also in the FORWARDERS of the DNS server.  The main issue was the MAIL server had 2 NICs and the second one that wasn't being used was ahead of the 1st NIC in the Binding order under Network Neighborhood/Advanced Settings.  I moved the 1st NIC up in the order and I haven't had an LDAP error in 2 days.
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

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

One of the most important things in an application is the query performance. This article intends to give you good tips to improve the performance of your queries.
Eseutil Hard Recovery is part of exchange tool and ensures Exchange mailbox data recovery when mailbox gets corrupt due to some problem on Exchange server.
To add imagery to an HTML email signature, you have two options available to you. You can either add a logo/image by embedding it directly into the signature or hosting it externally and linking to it. The vast majority of email clients display l…
In this video, Percona Solution Engineer Rick Golba discuss how (and why) you implement high availability in a database environment. To discuss how Percona Consulting can help with your design and architecture needs for your database and infrastr…
Suggested Courses

877 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