I'm getting a media center extender error...

Whenever I try to connect my Xbox 360 to my computer to use the 360's Media Center functions I get an error on the PC's end as they're trying to see eye-to-eye (it hangs on the 3rd step of connection; "Setting Extender..." then fails).

The event viewer lists the event ID as "405" and that it failed with an error code of "-209". Through some research, I've seen others with a similar complaint.

I was able to connect to my father's Vista Ultimate computer but I have been unsuccessful in my own attempts to connect to my PC (which is also Vista Ultimate).

Perhaps AfterDawn could shed some light on this? I'll provide you with any extra info necessary to pinpoint the problem.