Be glad you're not getting buffering while hard wired like I am. Even though I am trying to stream high bit rate full Bluray rips but my connection is definitely up to snuff for the job so I have no idea what is causing the Box to buffer trying to stream what I'm trying to stream. It would be frustrating if I didn't already find a replacement for what the Boxee Box was purchased to do.
Boxee Box firmware: Latest
PC to Boxee Box connection: SMB over gigabit wired Ethernet.
Boxee Box buffers on BR MKVs and ISOs.
Streaming BR MKVs and ISO rips with full menus to Dune with no issues.
Streaming BR MKVs and ISO rips to two HTPCs using XBMC with no issues
PC Storing Media: Vista Home 64 bit, dual core (2.5GHz), 4GB RAM
Storage for media: 4 external WD Elements drives. 4 Hitachi 3TB drives
Router: NetGear WNR3500L-100NAS Wireless-N Gigabit Router