Changing IP address of SQL Server 2012
I would say that SQL Server does care when you change the IP address of your server. It is all based on the configuration of the TCP/IP settings for that given instance.



Once you change the IP, go into SQL Server Configuration Manager and then the Network Configuration. Verify that the new IP was updated properly in the list of IPs for the TCP/IP protocol. If it does not show up, you will likely see the old IP still there, just update it to the new one.

After this you will need to restart the instance.