bxs122 since what date are you having this problem.
See my thread
http://thegreenbutton.com/forums/171611/ShowThread.aspx#171611
on my issue ?

Glenagoolie:

bxs122 since what date are you having this problem.
See my thread
http://thegreenbutton.com/forums/171611/ShowThread.aspx#171611
on my issue ?

The problem started for last week me after updating my mobo.

bxs122:

Powers:

on the 360 media center press y this sets up a new connection you get your pass key and its all sorted

I am having the same problems now - switched mobo and went to reset the extender and now stuck. This was working ever since I installed Vista and now that it is not working I know it has got to do something with my having installed a new mobo.

I have followed this thread and tried everything but pressing y - why, because it is greyed out. How are you guys pressing y on the xbox360 to generate a new key?

Ok - for anyone experiencing this issue but who have had the extender setup and working once before then the problem may be as I have found, a certificate issue. The following cleared things up for me and I was able to readd the 360 as a Vista MCE extender.

*note this worked for Vista Ultimate - I do not know what snap-ins were removed for Home and/or Home Premium.

1. Run the "mmc" console 
2. Add/Remove the "Certificates" snap-in selecting Computer Account when prompted
3. On the left tree select 'Console Root' -> 'Certificates' -> 'Personal' -> 'Certificates'
4. Like me you may see the Microsoft Windows Media Center Extender Host certificate, if so then delete it.
5. Now retry to add your extender 

 

This was the fix for me. Big thanks as I'd never have got this sorted myself.

im encountering the same error @ the moment. can you guys pls help. this is, in fact VERY FRUSTRATING

This fix did not work for me, I have completely wiped my Vista Machine and re-formatted the XBOX 360.  Tier 2 technical support at XBOX was no help...has anyone else had this issue continue even after doing the fix above?

caberg - I may be able to help. Can you please check the event viewer for any Media Center events corresponding to the time that you tried to add the Xbox 360 as an Extender. (right click Computer --> Manage. Select Event Viewer --> Select Applications and Service Logs --> Media Center)

I'm having the exact same problem.  Error code -209 in event viewer. This all started happening after I upgraded the Zune software on my PC.  Come on, Microsoft, you can't even get your two toys to work together.  Thank God I have a PS3 that allows me to stream media to it.

I'm getting error 209 as well.  I always suspected the upgrade to Zune 2.0 had something to do with it.  Does anyone have any known fixes out there?  I've wasted way too much time trying to fix this with absolutely no luck.  I've tried all the fixes previously listed in this thread.  Please help!

Bataar:

I'm having the exact same problem.  Error code -209 in event viewer. This all started happening after I upgraded the Zune software on my PC.  Come on, Microsoft, you can't even get your two toys to work together.  Thank God I have a PS3 that allows me to stream media to it.

This did it for Me. Thnx, started getting connection errors after reinstalling Windows using "Easy File Transfer" turns out it restored the cert which wasn't any good once I deleted it, connection wait fine

I am another with the same problem and I've tried everything suggested, including uninstalling OneCare, deleting the certificate, and viewing the event log - but I have different error messages.  I've tried doing research on the error messages but I'm quickly over my head.  Can you help me?

These are the errors:

"Windows cannot log you on because your profile cannot be loaded. Check that you are connected to the network, and that your network is functioning correctly.  DETAIL - Only part of a ReadProcessMemory or WriteProcessMemory request was completed. "

Followed by

"Windows Media Center Extender setup cannot create account Mcx1 for device 'uuid:10000000-0000-0000-0200-0017FA650D69'. Error code: 0x8007012b."

Followed by

"Windows Media Center Extender setup failed with the following error code: -205."

I did the snap in method and it did NOT work. I also noticed that it re-installs the "media center host" certificate everytime I try to add the extender. any ideas why or what should I do?

I just wanted to post my experience.

I purchased the Linksys DMA2200 which forced me to upgrade to Windows Vista Ultimate from XP MCE2005 (which worked like a charm).

Aside from the standard Vista annoyances, I could not get the Extender to complete its setup.  Vista sees the Extender, then I give it the key, answer a few more questions and get the generic Configuration Error screen.  Nice waste of an afternoon.

I eventually gave up and put back my MCE 2005 (I made an image foreseeing Vista trouble) and put back my faithful old XBOX (original) media extender.

I had Zune installed on my XP, could this have been the issue?  I suppose a clean install of Vista is more appropriate?

Any comments would be appreciated.

Thanks.

bxs122 , you are my hero. You saved me a reinstall of SP1.

I'm not entirely sure if this is the problem.  Are you using an administrators account while working with media center in Vista?  I have encountered one problem after another and then realize I was using a standard user account.  I don't own a Zune and was having this same problem.  I just own a pc with Vista Home Premium, 2 ATI TV Tuners and a Xbox 360.  Once I switched to my admin account it worked just fine.  Just my two cents.