We've had a DAG member go down, and need to bring it back into the DAG. I'm getting the below error when trying to remove it from the dag. Is it because the server has been rebuilt and added back into the domain already? Can I remove it from the AD config node? Any feedback is appreciated.
PS C:\> Remove-DatabaseAvailabilityGroupServer dag1 -MailboxServer MBX1 -ConfigurationOnly
WARNING: An unexpected error has occurred and a Watson dump is being generated: The given key was not present in the dictionary.
The given key was not present in the dictionary.
+ CategoryInfo : NotSpecified: (:) [Remove-DatabaseAvailabilityGroupServer], KeyNotFoundException
+ FullyQualifiedErrorId : System.Collections.Generic.KeyNotFoundException,Microsoft.Exchange.Management.SystemConfigurationTasks.RemoveDatabaseAvailabilityGroupServer
+ PSComputerName : MBX2.domain.com