Cannot Connect to SQLServer 2014, Cannot start SQL Server Browser

Question

I have SQLServer 2014 Developer Installed I am trying to connect to it from a .aspx page. I get error 26 "server was not found or was not accessible............".  Thus is all being done on a local machine using IIS 8.5.
 <add key="ConnectionString" value="server=DONSR\sqlserverexpress;Trusted_Connection=False;database=PLF;UID=sa;PWD=cool4309" />
In the SGL 2014 configuration module. Everything is enabled including TCP/IP,  EXCEPT  the SQL Browser. When I try to enable it I get "This service cannot be stated, either, because it is disabledor
because it has no enable devices with it [ox80070422]"

Answer 1

Hello,
You said that you are trying to connect from an ASPX page. which I assume it is hosted on a remote server (not on the sql box)
There are two possible problems
1 - TCP/IP disabled 
http://msdn.microsoft.com/en-us/library/ms191294.aspx
2 - Windows firewall on the SQL box blocking TCP Port 1433 (I believe this is what is happening to you)
To confirm if this is the case, from a remote computer try to connect using Telnet to the port 1433
TELNET SQL_SERVER_NAME 1433
If this is the case you have to configure windows firewall to allow incoming connections to this port
Regards
Javier Villegas |
@javier_vill | http://sql-javier-villegas.blogspot.com/
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