?
Solved

Invalid Password Issue AD

Posted on 2009-07-06
2
Medium Priority
?
291 Views
Last Modified: 2012-05-07
Hello All,

We are having an unusual issue with Active Directory. Intermittently users are receiving an invalid password dialog when attempting to authenticate. I have verified that the users are not typing in the wrong password or any of the basic mistakes that are made. The accounts are not locked out when this occurs and all DC's and GC's are available when this issue occurs. There are no errors in the event log as it is clean mosting informational events and no warnings or errors. Any help would be appreciated.

Thank You~
0
Comment
Question by:ValleyENT
[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 Comments
 
LVL 14

Accepted Solution

by:
Shabarinath Ramadasan earned 1500 total points
ID: 24786673
Check if all the DCs on the local site are well synced.
I suspect one of your DC is not properly synced and whenever a request goes to that DC, its showing invalid DC.

As its difficult to identify from the user end - to which DC the authentication request will be going, I prefer using repadmin or replmon to confirm that the replication is fine.

If you are able to get on account lockedout after multiple entries, you can identify from which server the lockout is initiated.

Hope this helps.

Cheerio
Shaba
0
 
LVL 4

Author Comment

by:ValleyENT
ID: 24786811
I rad repadmin and this was the output:

CALLBACK MESSAGE: The following replication is in progress:
    From: 0211cd83-d075-4b5c-ad17-23f8b0ecb234._msdcs.VENT.local
    To  : 8a939b17-3f1e-42d7-8606-373585f8cafb._msdcs.VENT.local
CALLBACK MESSAGE: The following replication completed successfully:
    From: 0211cd83-d075-4b5c-ad17-23f8b0ecb234._msdcs.VENT.local
    To  : 8a939b17-3f1e-42d7-8606-373585f8cafb._msdcs.VENT.local
CALLBACK MESSAGE: SyncAll Finished.
SyncAll terminated with no errors.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

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

A company’s centralized system that manages user data, security, and distributed resources is often a focus of criminal attention. Active Directory (AD) is no exception. In truth, it’s even more likely to be targeted due to the number of companies …
Compliance and data security require steps be taken to prevent unauthorized users from copying data.  Here's one method to prevent data theft via USB drives (and writable optical media).
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
Are you ready to implement Active Directory best practices without reading 300+ pages? You're in luck. In this webinar hosted by Skyport Systems, you gain insight into Microsoft's latest comprehensive guide, with tips on the best and easiest way…
Suggested Courses

764 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