Hello Everyone,
I have a web server that is on our DMZ subnet and I have a sql 2014 database server with Always on Availability Groups that is on our internal domain subnet. The failover cluster is on the internal domain subnet as well. I am trying to connect a web application, that is working off the .net 2.0 framework, to an SQL Server 2014 database using the Always on Availability Group Listener. The connection strings works perfect with the named instance of the sql server but when I try to use the Availability Group listener it timed out. I did some research online and was led to believe that increasing the connection time would resolve it. I did that and got a different error pertaining to a successful connection but an error occurred during the login process (Provider: TCP Provider, error: 0 - The specified network name is no longer available.) I just want to connect to an Availability Group Listener on the domain subnet. I have rules in the firewall to allow all services for the IP of the Listener. I switch back to the named instance of the same server and it works flawlessly. I have also connected to the Listener while running the application on the same subnet as the sql server without an issue. I have tried the IP instead of the Listeners name and still received the same error on the DMZ subnet. I'm at a cross roads. Do I continue to pursue this or do I try and convert the application to a later version of .net and hope that helps. Any information is valued and appreciated.
I'm running on Windows Server 2012 R2 on all servers.
The Web Server is using IIS 8.5
All Physical Machines except the replicas and webserver are virtual machines.
All Static IPs involved.
As mentioned all SQL Servers are 2014.
Thank you,
Mark