ATV second gen not seeing iTunes Match

Question

Home sharng, iTunes match and all other related settings are correct, but I cannot see my iTunes match music on ATV. It  sees only the music actually saved on local computer. iPhone and iPad see and play all my music. On the computer in iTunes, I can select iTunes match music and ATV speaker and it streams the sound to ATV, and album cover is displayed. Have tried resetting ATV, re-installing iTunes, resetting router and computer, turning off and back on homesharing and iTunes match. all to no avail.
Okay, I wanted to try one last thing to try and fix this, and it did. Here is how, for others who might have the same problem:
1. On ATV main screen select the music icon.
2. On upper row of options,select "My Music". ATV gives message that its setting up the library. Voila!
This is not mentioned in all the docmentation I have read.
Hope this may help someone,
Pete

Answer 1

Match is visible on the MBP.  I have gone through the discussion thread you linked, thanks.
After I cleared the Match cache on the MBP, thought that was doing the trick, as it took a long time (several hours) to complete the update of Match, but after it completed I was still only shown the music that resides on the MBP and nothing from the cloud.
On the MBP, all the songs are showing as 'Waiting' in iTunes Match status - this includes songs which I had previously transferred to the MBP through Home Sharing prior to signing up with Match.
So it seems to me that for some reason the MBP is just not connecting with the cloud...
Thanks for your help so far.