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

Exchange server can't detect GC

Posted on 2007-11-14
4
858 Views
Last Modified: 2008-09-24
My mail server sudenly lost connection to Global Catalog, and cannot reestablish it. On the list of "All domain controllers" the actuall GC is missing, i can see other domain controller though. "Global catalog" list is empty. Typing in manualy name of GC is not solving problem :(

GC however, as well as secoundary DC are passing all DCDIAG tests :/

Please help!
0
Comment
Question by:dannydudek
  • 3
4 Comments
 
LVL 15

Expert Comment

by:markpalinux
ID: 20282344


How do you know ? what alerted you?

Can you ping it ? are they in the same site

try "net use \\gcname"  where the gcname is the name of your dc.

I am not sure for what specific items, but exchange needs wins and dns.

if it does ping and they are on the same subnet look at the arp table - to confirm the macs match.

Thanks,
Mark
0
 

Author Comment

by:dannydudek
ID: 20287711
Outlook couldn't connect to  mail server. Mail server logs reported unable to connect to GC.

I can ping GC, i can browse it, I can even connect AD Users and Computers console to it. For some reason however mailserver doesn't see it as GC, not even domain controller.

I runned yesterday morning SECEDIT on that DC, as it couldn't refresh group policy for the past few days.

I thinking od demoting it from being DC altogether and promote it again?
0
 

Author Comment

by:dannydudek
ID: 20287736
Also, forgot to mentioned.

I worked around the issue, by enabling secondary DC as GC. Mailserver is using it now, and it's the only DC and GC it sees.
0
 

Accepted Solution

by:
dannydudek earned 0 total points
ID: 20288339
I have solved the problem.

I disabled GC on domain controller that exchange server couldn't detect, and re-enabled it. Mail server detected it after few minutes.

Thanks.
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

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

So you have two Windows Servers and you have a directory/folder/files on one that you'd like to mirror to the other?  You don't really want to deal with DFS or a 3rd party solution like Doubletake. You can use Robocopy from the Windows Server 200…
Learn about cloud computing and its benefits for small business owners.
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…

838 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