I'm having the same problem, and after reading this thread I came across this;
QUOTE(Wireless Geek @ Mar 25 2006, 04:43 AM)

This continues to be a problem for me as well. I'm running a 2.8 GHz Dual Core Pentium D with 1 GB RAM on Windows MCE 2005. The ap works fine on my other PC. All firewalls are disabled.
Any ideas? I'll do a little more searching.
The test connection works, it's weird. The transfer just won't start.
-- Geek
EDIT: WTF? I tried transfering in XBMC and the transfer started and ran fine. Anyone figue out what the heck is going on?
...and it worked!
(at least for the transfer, haven't gotten around to testing the 'manage titles'-option yet)