Failover Cluster in SQL 2012 in not auto switch when stop service SQL

Good Morning to all,
I'm Mr.Tuyen from VietNam. I have a big problem with AlwaysOn High Availabity in SQL 2012.
I setup 3 server and join Availabilty Group. Ex: Server A (Primary), Server B (Secondary), Cluster Qourum is only node. I have test:
1. Stop service SQL server A, immediately server B is Primary
Start servicel SQL server A, Server A is secondary
2. Stop service SQL server B, server is not Primary and "status is Resloving" and role cluster failed with error as belows
[i]Clustered role 'XXX' has exceeded its failover threshold. It has exhausted the configured number of failover attempts within the failover period of time allotted to it and will be left in a failed state. No additional attempts will be made to bring the role
online or fail it over to another node in the cluster. Please check the events associated with the failure. After the issues causing the failure are resolved the role can be brought online manually or the cluster may attempt to bring it online again after
the restart delay period.[/i]
or
The Cluster service failed to bring clustered role 'XXX' completely online or offline. One or more resources may be in a failed state. This may impact the availability of the clustered role.
Do you have same error?

http://blogs.msdn.com/b/sqlserverfaq/archive/2012/03/15/inf-alwayson-the-secondary-database-doesn-t-come-automatically-when-the-primary-instance-of-sql-server-goes-down.aspx
Balmukund Lakhani
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Failover Cluster in SQL 2012 in not auto switch when stop service SQL

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