MS SQL Server 2016 - Always On Node-2 Stuck In Resolving State
If I read correctly, your failover mode is set to &quot;manual&quot;. In this case, SQL will not trigger a failover by itself.
If you are expecting node 2 to be promoted as primary automatically when node 1 goes down, then you will need to change the failover mode to &quot;automatic&quot; and then, that should do it.