Step by step how to enable Remote Connection on SQL Server 2008 Express:
1. Open SQL Server Configuration Manager. Click Start -> Programs -> Microsoft SQL Server 2008 -> Configuration Tools -> SQL Server Configuration Manager.
2. On SQL Server Configuration Manager, select SQL Server Services on the left window. If the state on SQL Server Browser is not running, you have to configure and start the service. Otherwise, you can skip to step 6.
3. Double-click on SQL Server Browser, the Properties window will show up. Set the account for start SQL Server Browser Service. In this example, I set to Local Service account.
4. On SQL Server Browser Properties, move to Service tab and change Start Mode to Automatic. Therefore, the service will be start automatically when the computer starts. Click OK to apply changes.
5. Back to SQL Server Configuration Manager, right-click on SQL Server Bowser on the right window and select Start to start the service.
6. On the left window, expand SQL Server Network Configuration -> Protocols for SQLEXPRESS. You see that TCP/IP protocol status is disabled.
7. Right-click on TCP/IP and select Enable to enable the protocol.
8. There is a pop-up shown up that you have to restart the SQL Service to apply changes.
9. On the left window, select SQL Server Services. Select SQL Server (SQLEXPRESS) on the right window -> click Restart. The SQL Server service will be restarted.
10. Open Microsoft SQL Server Management Studio and connect to the SQL Server 2008 Express.
11. Right-click on the SQL Server Instance and select Properties.
12. On Server Properties, select Security on the left window. Then, select SQL Server and Windows Authentication mode.
13. Again, there is a pop-up shown up that you have to restart the SQL Service to apply changes.
14. Right-click on the SQL Server Instance and select Restart.
15. You’ve done great job. Now, you should be able to connect to SQL Server 2008 Express remotely.