iTunes Match not working on second computer

[wildcat1451]

I re-imaged my computer, and now music won't upload to iTunes match. Even after i've signed in with the same account and authorised the computer. Are there any tips and tricks to use?

 

[iPhisch]

I re-imaged my computer, and now music won't upload to iTunes match. Even after i've signed in with the same account and authorised the computer. Are there any tips and tricks to use?

This has been happening to be ever since I upgraded to 10.8
Haven't been able to upload songe ever since. The 3-step process just keep restarting. From what I've heard, you basically have to erace your library and start over, but I haven't tried this, still hoping for a fix instead of sorting through and re-adding 80bg of music.