The RAID Web Console 2 should be able to discover the localhost unless configured otherwise under the Configure Host settings.
I noticed that the link you posted is for version 12.05.03.00, I would recommend downloading version 14.05.02.03 (latest) to compare results. Make sure that the device driver is installed properly as this might cause the console not to see the server.
By the way, what is the model of your RAID controller? This is to confirm that your specific model is supported by this utility.