On my installation of SQL Server 2012 Developer Edition, installed with default settings, I just had to load the SQL Server Configuration Manager -> SQL Server Network Configuration -> Protocols for MSSQLSERVER and change TCP/IP from Disabled to Enabled.
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Well, glad I asked. The solution I finally discovered was here: How do I configure SQL Server Express to allow remote tcp/ip connections on port 1433?
So far, so good, and entirely expected. But then:
(Also, if you follow these steps, it’s not necessary to enable SQL Server Browser, and you only need to allow port 1433, not 1434.) These extra five steps are something I can’t remember ever having had to do in a previous version of SQL Server, Express or otherwise. They appear to have been necessary because I’m using a named instance (myservername\SQLEXPRESS) on the server instead of a default instance. See here: |
To assign a TCP/IP port number to the SQL Server Database Engine
- In SQL Server Configuration Manager, in the console pane, expand SQL Server Network Configuration, expand Protocols for <instance name>, and then double-click TCP/IP.
- In the TCP/IP Properties dialog box, on the IP Addresses tab, several IP addresses appear in the format IP1, IP2, up to IPAll. One of these is for the IP address of the loopback adapter, 127.0.0.1. Additional IP addresses appear for each IP Address on the computer. Right-click each address, and then click Properties to identify the IP address that you want to configure.
- If the TCP Dynamic Ports dialog box contains 0, indicating the Database Engine is listening on dynamic ports, delete the 0.
- In the IPn Properties area box, in the TCP Port box, type the port number you want this IP address to listen on, and then click OK.
- In the console pane, click SQL Server Services.
- In the details pane, right-click SQL Server (<instance name>) and then click Restart, to stop and restart SQL Server.
After you have configured SQL Server to listen on a specific port, there are three ways to connect to a specific port with a client application:
- Run the SQL Server Browser service on the server to connect to the Database Engine instance by name.
- Create an alias on the client, specifying the port number.
- Program the client to connect using a custom connection string.
You can use this to solve this issue:
Go to START > EXECUTE, and run CLICONFG.EXE.
The Named Pipes protocol will be first in the list.Demote it, and promote TCP/IP.
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