I have several devices on my home network. Windows XP PC's, Windows 7 PC's, Android tablets, and 2 Windows 8 laptops.  All the devices can see the harddrive attached to my WiFi router except for one of the Windows 8 laptops and I can't seem to figure out a solution.

That laptop, compared to all the other devices, connects by a Wireless G adapter vs. Wirless N for everything else, but I don't think that's the problem.

It CAN access the NAS drive through Windows Media Player, however, only media in that case and not documents. Why can it see the drive through WMP but not Explorer???  ...and what's the fix? Any ideas would be greatly appreciated!

The laptop has a Windows 8 32-bit upgrade installed. 

Windows Explorer shows the Media access for the drive, but not the drive itself.

Can you access the hard drive via its IP address in Windows Explorer? Please try to modify the following registry on Windows 8 for a test.

1 - run regedit

2 - locate HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Policies/System

3 - create a new DWORD entry with the name EnableLinkedConnections and value 1.

4 - restart your computer