I had a problem getting tivostream (which uses this somehow I think) after my TiVo was upgraded to v11.0.P3. Turns out that I had to turn "turbo mode" off in my wireless connection!? Very surprised.Can anyone think of any reason that I can't access it from my Tivo? It's over a wireless network - not sure if that makes any difference.
Anyway it's POSSIBLE your wireless is at issue somehow...