Hi again,
As far a the mapping of the drive to your computer. Try just disconnecting it, right click on drive in explorer, select disconnect, reboot your computer and then right click on the computer in explorer, and click on map drive. The format is usually, \\DLINK-xxxxx\ Volume_1 , at least in W7, should be same or similar on W8. When you go to connect, you will be prompted for user and password, enter and save it. If all works well, you should be good to go. Good luck
PS. You should be able to see the NAS when you click on NETWORK in windows explorer, if not then you must not have enabled network discovery and file sharing on the computer. The only other problem I can think of is if you have a workgroup with different names on your devices.