I got error message 4001 when trying to upload music to imatch

The only other thing I should mention is that I had disabled and reenabled Match on all the devices I used in the beta (MBP and iPhone) before I was successful on the new device (iMac).

yes i was also on the dev beta

I was never a developer and have run into this error. Very frustrating, especially considering we're paying to use the service.

And we're back to 4001 errors.

I'm having these same problems too and i was not a dev i really want to use what i paid for though

FYI - I contacted iTunes support and they have a tech looking into it now. L

I contacted them yesterday and of course they never replied. But hopefully their tech can fix this fast; it's interesting that it took them this long to figure out that there's an issue.

Having the same issue. Tried re-auth, tried toggling off and genius off, quitting and then back on and all the other options people have said worked. No dice. Also was using in beta.

I still have the error too and tried everything. Odd thing it the old beta worked just great

Add me to the "4001 Error" list. Tried everything eveyone has suggested. Still a no go. I did test it out briefly during the beta and had no problems getting it going then.

I just found this on another site -> try holding Option while turning iTunes Match off, then enable iTunes Match again.

I am also having the "4001" error on both my MacBook Pro and my iMac.

Oh wow. I was having the same problem, trying everything mentioned previously in this thread, but holding option whilst turning off iTunes Match worked like a charm! Thanks, whatheck!!

Holding down the option key worked for me, too! Thanks.

Thanks everyone! The option key worked for me as well!