When a computer somehow loses the trust relationship with the domain (for instance when longer than 30 days not connecting to the domain, or in a virtual environment returning to a snapshot) the usual steps you have to take are:
- Get the computer out of the domain to a workgroup (remember the local admin password!)
- Reboot
- Rejoin the domain
- Reboot
With powershell to the rescue it is an easier process:
Test-ComputerSecureChannel -Repair -Credential YourDomain\AdminUser
From the get-help
NAME
Test-ComputerSecureChannel
SYNOPSIS
Tests and repairs the secure channel between the local computer and its domain.
SYNTAX
Test-ComputerSecureChannel [-Credential [<PSCredential>]] [-InformationAction {SilentlyContinue | Stop | Continue | Inquire | Ignore | Suspend}] [-InformationVariable [<System.String>]] [-Repair] [-Server [<String>]] [-Confirm] [-WhatIf] [<CommonParameters>]
DESCRIPTION
The Test-ComputerSecureChannel cmdlet verifies that the secure channel between the local computer and its domain is working correctly by checking the status of its trust relationships. If a connection fails, you can use the Repair parameter to try to restore it.
Test-ComputerSecureChannel returns “True” if the secure channel is working correctly and “False” if it is not. This result lets you use the cmdlet in conditional statements in functions and scripts. To get more detailed test results, use the Verbose parameter.
This cmdlet works much like NetDom.exe. Both NetDom and Test-ComputerSecureChannel use the NetLogon service to perform the actions.
RELATED LINKS
Online Version: http://go.microsoft.com/fwlink/p/?linkid=293925
Checkpoint-Computer
Reset-ComputerMachinePassword
Restart-Computer
Stop-Computer
REMARKS
To see the examples, type: “get-help Test-ComputerSecureChannel -examples”.
For more information, type: “get-help Test-ComputerSecureChannel -detailed”.
For technical information, type: “get-help Test-ComputerSecureChannel -full”.
For online help, type: “get-help Test-ComputerSecureChannel -online”
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