Exchange 2016 - Load balancing failed to find a valid mailbox database

Murrdog
Murrdog used Ask the Experts™
on
Hi,
I receive this error message when I try to add an exchange mailbox. I am unable to link the user and create a mailbox

Exchange 2016
'Load balancing failed to find a valid mailbox database.'

I have a DAG setup.

kind regards,Exchange 2016 error
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Server engineer
Commented:
It looks like the databases were excluded from provisioning. Can you please run the following commands in exchange

Get-mailboxdatabase | ft name,isexcludedfromprovisioning

Get-mailboxdatabase | ft name,issuspendedfromprovisioning

If the answer is true than that would be the culprit. Run the following commands to enable it depending on which query provided the True answer

Set-MailboxDatabase "MailboxDatabaseName" -IsSuspendedFromProvisioning $false

Set-MailboxDatabase "MailboxDatabaseName" -IsExcludedFromProvisioning $false
AmitIT Architect
Distinguished Expert 2017

Commented:
When this issue started? Do you remember any change made in your environment. Especially AD sites.

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