Xbox 360 PC selected failed

When I try to media share my PC to my 360 I get PC selected failed everytime.
I can go into WMP11 and see my 360 and I have allowed it access, but when I
go to my 360 it says there are no PC's on the network. I have tried turning
off both my windows fire wall and my McAfee fire will with no results. I am
running Windows XP and using a Linksys router model #befsr41. I can get on
to xbox live with no issues. Any help? Thanks, JD

I am having the same problem. Working on it but getting no where.

I have the same problem but I have a few more details.

1st. I am able to connect and share just fine until I reboot. After a reboot
it is broken no matter what I do. If I remove and add the xbox 360 in Media
Player 11 it still fails.

I think that there is some automatic patch on MP 11 that break my
connection. I tried unistalling and reinstalling, work great... till I
reboot. Tried rolling back to 9 and installing 10 instead, but 10 won't
install on XP.

So here goes...

Dear Microsoft:

As a share holder I would like to reques that you don't blow my money on
Yahoo and instead sell off oyu media crap and ditch the idea of growth and
think of your self as a utility. Make WIndows, Server software and Office and
paya dividend. Don't grow by making yourself worse.