I am having trouble mapping my nas drive on my Windows 8 .1desktop. I have a qnap 212 nas and have shared the multimedia and public folders. The data is all on the nas because my media streamers can access music through twonkymedia. Having looked it up i have found several links advising on adjusting the credentialing in windows but i still can't get it to work. My Windows 7 laptop can map the nas but this is also not 100% reliable. I suspect i need to fix both my 8.1 desktop and nas settings. Please help.