Solved

Rejected when RDP'ing by IP. Accepted when using FQDN?!

Posted on 2013-05-17
7
505 Views
Last Modified: 2015-03-19
hi guys,

we have a windows 2008 R2 Virtual machine (Vmware).

It's been running fine for ages. However, now when I try to log onto it by RDP with the IP address, it asks me for the domain credentials. When I enter them, I am rejected.

When I do the same thing using the FQDN, it asks me for credentials and when I enter them, I'm in!

Also, when I go to the Vcenter console and log onto the machine using the same credentials, it also works!

In the event id for security, I'm getting the event ID 4625 showing up and something about a NULL SID when I get rejected.

Is it possible, that this machine needs to be taken off the domain. Applied a Newsid (risky?) Rejoined to the domain?

It's a very important server, so I need to sort this out soon.

Thanks for your help:)
Yashy
0
Comment
Question by:Yashy
7 Comments
 
LVL 9

Accepted Solution

by:
djsharma earned 250 total points
ID: 39174243
0
 
LVL 9

Expert Comment

by:VirastaR
ID: 39174244
Hi,

Is this how the Event 4625 Looks?

The event entry that has an Event ID 4625 resembles the following:
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: date
Event ID: 4625
Task Category: Logon
Level: Information
Keywords: Audit Failure
User: N/A
Computer: computer name
Description:
An account failed to log on.
Subject:
Security ID: SYSTEM
Account Name: COMPU1$
Account Domain: MYDOMAIN
Logon ID: ID
Logon Type: 7
Account For Which Logon Failed:
Security ID: NULL SID
Account Name:
Account Domain:
Failure Information:
Failure Reason: An Error occured during Logon.
Status: 0xc000006d
Sub Status: 0xc0000380
Process Information:
Caller Process ID: 0x384
Caller Process Name: C:\Windows\System32\winlogon.exe
Network Information:
Workstation Name: computer name
Source Network Address: IP address
Source Port: 0
Detailed Authentication Information:
Logon Process: User32
Authentication Package: Negotiate
Transited Services: -
Package Name (NTLM only): -
Key Length: 0

if that's the case then it is a "Logon failure" issue nothing to do with SID because if it is a SID issue then AD cannot authenticate you either using IP Address or FQDN,but in our case its working fine with FQDN,So "NULL SID" has nothing to do with this issue.

As you stated that it was working for ages, then what changed in the Environment? after which it stopped working?

Any change at all? in a Physical machine/VM - like windows updates/driver updates etc.
0
 
LVL 1

Author Comment

by:Yashy
ID: 39174274
I'm getting this:

Subject:
      Security ID:            NULL SID
      Account Name:            -
      Account Domain:            -
      Logon ID:            0x0

Logon Type:                  3

Account For Which Logon Failed:
      Security ID:            NULL SID
      Account Name:            administrator
      Account Domain:            FC

Failure Information:
      Failure Reason:            Unknown user name or bad password.
      Status:                  0xc000006d
      Sub Status:            0xc000006a

Process Information:
      Caller Process ID:      0x0
      Caller Process Name:      -

Network Information:
      Workstation Name:      CAMIT
      Source Network Address:      -
      Source Port:            -

Detailed Authentication Information:
      Logon Process:            NtLmSsp
      Authentication Package:      NTLM
      Transited Services:      -
      Package Name (NTLM only):      -
      Key Length:            0
0
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 1

Author Comment

by:Yashy
ID: 39174288
Nothing has changed in this environment as far as I know.

If we restart the server, we can log onto the server by IP address. Then around one hour later, we are unable to. But then I wonder if there are some services that could be affecting it?
0
 
LVL 9

Assisted Solution

by:VirastaR
VirastaR earned 250 total points
ID: 39175262
Hi Yashy,

Try this solution and let me know whether it worked.
http://www.aaronpalermo.com/wordpress/archives/96
0
 
LVL 1

Author Comment

by:Yashy
ID: 39199016
hi,

This apparently has been removed.
0
 

Expert Comment

by:mathieuboulaz
ID: 40675306
Hello,

I have the same problem actually on two physical servers in my Active Directory. It's working fine with all other servers.

Does somebody find anything ?

TIA for answering
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

Suggested Solutions

When converting a physical machine to a virtual machine using VMware vCenter Converter Standalone or vCenter Converter Enterprise, if an adapter type is not selected during the initial customization the resulting virtual machine may contain an IDE d…
A procedure for exporting installed hotfix details of remote computers using powershell
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…
This Micro Tutorial walks you through using a remote console to access a server and install ESXi 5.1. This example is showing remote access and installation using a Dell server. The hypervisor is the very first component of your virtual infrastructu…

821 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