I double checked about this and you are correct, this driver is only for the adapters you mentioned. I am sorry for the misunderstanding.
The following article shows a list of driver versions you can choose from. The latest versions (15.x) support the Intel® Centrino® Wireless-N 2230.
Intel® PROSet/ Wireless Software Downloads
http://www.intel.com/support/wireless/wtech/proset-ws/sb/CS-034041.htm
We are currently investigating about this case; however, due to the possibility of a hardware issue you may want to contact the computer manufacturer. The fact that different users experience similar symptoms does not mean that they are originated by the same cause.