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
362 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
[X]
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
  • 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

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

This article will help to fix the below error for MS Exchange server 2010 I. Out Of office not working II. Certificate error "name on the security certificate is invalid or does not match the name of the site" III. Make Internal URLs and External…
This article shows how to get a list of available printers for display in a drop-down list, and then to use the selected printer to print an Access report or a Word document filled with Access data, using different syntax as needed for working with …
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…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

627 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