question

Waqas-6073 avatar image
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Waqas-6073 asked KaelYao-MSFT commented

Unable to add in DAG member server in Exchange Server 2019

primary Server
10.1.xx.xx
255.255.0.0

Secondary Server
10.1.xx.xx
255.255.0.0

DR Network
DR server 10.40.40.xx
255.255.255.0

unable to add Secondary Server in IPLESS DAG. please suggest

error

A server-side database availability group administrative operation failed.
Error The operation failed. CreateCluster errors may result from incorrectly configured static addresses. Error: An error occurred while attempting a cluster operation. Error: Cluster API failed: "AddClusterNode
() (MaxPercentage=100) failed with 0x5b4. Error: This operation returned because the timeout period expired".

office-exchange-server-administrationoffice-exchange-server-connectivityoffice-exchange-server-itpro
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1 Answer

KaelYao-MSFT avatar image
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KaelYao-MSFT answered KaelYao-MSFT commented

Hi @Waqas-6073

To my knowledge, this issue is usually caused by network problems.
Are there any firewalls between the two member servers which may possibly block network traffic?
Group policy which restricts access may also be a possible cause.

Here are a few threads about this issue for your reference:
Unable to Add DAG Member Exchange 2016
Error when adding mailbox servers at DR as members to the DAG


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Hi @Waqas-6073

Just checking in to see if above information was helpful.
Please let us know if you would like further assistance.

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