Hi All,
I have a client that is connecting slow to the listener of our AlwaysOn availability group. The listener has 2 IPs in different subnets. He is specifying MultiSubnetFailover=True but it doesn't appear that it is checking both IPs in parallel. What appears to be happening is it is checking one, waiting for the timeout and then checking the other IP address. We have several others that are not experiencing this issue.
He is running .NET Framework v4.0.30319 so that doesn't appear to be the problem.
Any other ideas of what to check?