I have been using iTunes Match for 6 months or so and have been reasonably happy with the service. However over the past 2-3 days I get an error when I try to add new songs to iCloud:
We could not complete your iTunes Store request. An unknown error occurred (4010). There was an error in the iTunes Store. Please try again later.
I have restarted iTunes, rebooted my Mac but it made no difference.
Researching online shows lots of people going through all kinds of steps such as blowing away their whole iTunes library to fix this - often without success. As this is not a new problem I am hoping someone will know the proper fix for it.
Thanks in advance.