Once you add the 3rd node in to AlwaysOn group, you can choose "data sychronization preference" as

1' Automatic seeding

2. Full DB and log backup

3. restore DB and log and JOIN...

Jo,

Could you tell me the results ... open the SSMS from your desktop / Jump server and

1. Connect Node 1 SQL Server (Primary). Are you able to connect?
2. Connect Node...

Windows Server 2016 Standard and SQL Server 2017 EE

regards

Sree

Did you follow up with your network team, whether there are any ports are blocking from Node 1 to Node2 SQL?

Correct Quorum Witness is missing in the above setup.

However I have same setup in my work place. My Scenarios are....

1. If Node2 (Secondary) gracefully rebooted (because of Windows patching), all...