- When a computer updates its computer account password with a domain controller
- When a computer is joined to a domain with a name that already exists
Event Source: NETLOGON
Event Category: None
Event ID: 5722
Description: The session setup from the computer ComputerName failed to authenticate. The name of the account referenced in the security database is AccountName$.
The following error occurred:
Access is denied.
Event 5722 is logged in the following scenarios:
- When a computer updates its computer account password with a domain controller, the event is logged in the system log of the authenticating domain controller.
In this scenario, the computer's secure channel with the authenticating domain controller is still valid.
- When you join a computer to a domain by using a name that is already in use by another computer, or when an existing computer account is reset. An existing computer account may be reset by using Active Directory Users and Computers or by using the Netdom.exe utility.
In this scenario, the computer's account password does not match the password on the domain controller, and you cannot set up a secure channel from the original computer to the domain controller.
To resolve this problem, first determine which scenario is the cause of the problem. To do this, follow these steps:
- Note the date and the time that the event was logged in the system log.
- Click Start, point to Programs, point to Resource Kit, and then click Tools Management Console.
- In the console tree, click Tools A to Z.
- In the details pane, click ADSI Editor.
Note ADSI Edit is included with the Windows Support Tools. You can install the Windows Support Tools from the Support\Tools folder of the Windows 2000 Server CD-ROM.
For additional information about how to install the Windows Support Tools for Windows 2000, click the following article number to view the article in the Microsoft Knowledge Base:301423 How to install the Windows 2000 Support Tools to a Windows 2000 Server-based computerTo install ADSI Edit on computers running Windows Server® 2003 or Windows® XP operating systems, install Windows Server 2003 Support Tools from the Windows Server 2003 product CD or from the Microsoft Download Center (http://go.microsoft.com/fwlink/?LinkId=100114). For more information about how to install Windows Support Tools from the product CD, see Install Windows Support Tools (http://go.microsoft.com/fwlink/?LinkId=62270).
On servers running Windows Server 2008 or Windows Server 2008 R2, ADSI Edit is installed when you install the Active Directory Domain Services (AD DS) role to make a server a domain controller. You can also install Windows Server 2008 Remote Server Administration Tools (RSAT) on domain member servers or stand-alone servers. For specific instructions, see Installing or Removing the Remote Server Administration Tools Pack (http://go.microsoft.com/fwlink/?LinkId=143345).
To install ADSI Edit on computers running Windows Vista® with Service Pack 1 (SP1) or Windows 7, you must install RSAT. For more information and to download RSAT, see article 941314 in the Microsoft Knowledge Base (http://go.microsoft.com/fwlink/?LinkID=116179).
- In ADSI Edit, locate and then right-click the computer that is causing the problem.
- Click Properties.
- In Select which properties to view, click Both.
- In Select a property to view, click PwdLastSet.
- Copy the value that appears in the Value(s) box to the clipboard.
- Click Start, point to Programs, point to Accessories, and then click Calculator.
- On the View menu, click Scientific.
- Click Dec to set the numbering system to decimal.
- Paste the value from the clipboard into Calculator.
- To change the value from decimal to hexadecimal decimal numbering system, click Hex.
- On the Edit menu, click Copy.
- Paste the hexadecimal number from the clipboard to a file in Notepad.
- Count eight characters from the right most character of the hexadecimal string, and then press SPACEBAR.
Note This action splits the hexadecimal string into two hexadecimal strings.
- If the hexadecimal string on the left side contains only seven characters, add a zero to the beginning of the string.
- At a command prompt, type Nltest /time:RightSideHexadecimalstringLeftSideHexadecimalStringYou will receive output that is similar to the following:
C:\>nltest /time:a25cc370 01c294bc
a25cc370 01c294bc = 11/25/2002 13:55:41
The command completed successfully.
- Note the decoded date and time.
- Check whether the date and time that you noted in step 1 and the decoded date and time that you noted in step 20 match.
- If the date and time that event 5722 was logged and the decoded date and time match, check whether the computer that is causing the problem has a secure channel established with a domain controller by typing the following command at a command prompt:Nltest /server:ComputerName /sc_query:DomainNameIf the problem computer has a valid secure channel established with a domain controller, you receive output that is similar to the following:If the problem computer does not have a valid secure channel established with a domain controller, you receive output that is similar to the following:
C:\>Nltest /server:computer1 /sc_query: DomainName Flags: 30
Trusted DC Name \\homenode1.myhouse.com Trusted DC Connection Status Status = 0 0x0 NERR_Success The command completed successfully.
C:\>nltest /server:machine1 /sc_query: DomainName Flags: 0
Trusted DC Name
Trusted DC Connection Status Status = 5 0x5 ERROR_ACCESS_DENIED The command completed successfully.
- An administrator resets a computer account by using Active Directory Users and Computers or another tool such as Netdom.exe.
- A new computer is joined to the domain by using a name that already exists in the domain.
05/06 13:35:25 [MISC] NlMainLoop: Notification that trust account added (or changed) TRUSTING_DOMAIN$ 0x#### 4
To resolve problems that are related to duplicate computer names, rejoin the original computer to the domain.
You can ignore event 5722 if both of the following conditions are true:
- If the date and time of event 5722 and the decoded date and time match.
- A valid secure channel is established between the problem computer and a domain controller.
Administrators can also query Active Directory information from any computer in the domain by using Ldp.exe. The version of Ldp.exe that is included in the Windows XP Service Pack 2 Support Tools can also be used to decode the PwdLastSet value.
For additional informationabout Windows XP Service Pack 2 Support Tools, click the following article number to view the article in the Microsoft Knowledge Base:
Article ID: 810977 - Last Review: May 9, 2011 - Revision: 1