Playable files and Network Shares

WD Legacy Products WD TV Media Player
2

See if this first post helps you resolve your sharing issues.

http://community.wd.com/t5/WD-TV-Live-Streaming/How-to-resolve-quot-Network-shares-quot-access-problems-with/td-p/671513

 Also, you could have problems with Windows master browser.  Search forum for this term.