SQL Server Database Connectivity issues

May be installed after the database port 1433 is blocked by the firewall, to see if the port is listening:

Enter the command in CMD: Netstat-an to see if it is in the listener, if it does not enter the following settings,

C:\Windows\SysWOW64 This directory found Sqlservermanager.msc open to get:

Select the IP address used by the database to do the same as the Ipall and select the IP settings.

Restart related services, such as:

Reference URL: http://blog.csdn.net/thinkscape/article/details/6773128

SQL Server Database Connectivity issues