Unable to connect to iTunes purchases.

SAME PROBLEM HERE.... APPLE.... We Have A Problem....

Don't know if this will help, I have filled a case number with Apple and they are investigating this. Hopefully it will be resolved. It seems to be server related in my opinion.

Same issue for me. Wish we'd hear something from Apple. Getting very frustrated with issues lately every time there's an update.

Same problem here.

II'm surprised after all these comments still no answer or solution to the problem

Same here, in the UK - on all machines including iTunes 11.4-12.3

The same issue since the last update to 12.3

The tech on the phone is contacting engineering. He said it does not seem to affecting all accounts.

Same problem here. Error pops up periodically, but I seem to be able to play purchased content OK thus far.

Just got off the phone with Apple support on this. As usual, they won't acknowledge this bug and they were zero help (as usual again).

Same issue. MacBook Pro (15", Mid-2015), Yosemite (10.10.5), iTunes (12.3.0.44)

Did the same in my iTunes. I was able to fix it by going into account settings, at bottom of page, located "Reset all warnings for buying and downloading" and clicked the reset button. No problem since.

Tbis worked for me, too

I've been annoyed by this for 2 days and I just fixed mine. Hope this helps someone. I have  Music, iTunes Match, an iPad air with iOS 9, iPhone 6 Plus with iOS 9, iTunes 12.3 on El Capitan, and iTunes 12.3 on Windows 10. Steps I took that finally fixed it:

1. No actions necessary on iOS devices
2. On all copies of iTunes, turn off  Music and iCloud Music Library.
3. On all copies of iTunes, sign out of the iTunes store.
4. On all copies of iTunes, deauthorize the computer.
5. On all copies of iTunes, authorize the computer.
6. On all copies of iTunes, sign into the iTunes store.
7. On all copies of iTunes, turn on  Music and iCloud Music Library

Now the error is gone and I can see my purchased TV shows and movies in iTunes again. I'm fairly sure it was my iTunes 12.3 on Windows 10 that was "confused".

to mm200y, this worked for me. Thank you