Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Level 1

24 points

iTunes Error 8392

Getting this error message daily: "Could not purchase "APPNAME". An unknown error occurred (8392)

If I keep hitting the "update all apps" button it will eventually download, but it's very frustrating. I've signed out and back into Store, shut-down and restarted Mac (2016 iMac - all updates have been installed), but can't get rid of this error.

Not sure if related to this error, but when syncing both iPad (Air 2) and iPhone (6) (both fully updated to latest software), to iMac/iTunes that all apps do not get updated on iPhone/iPad, I have to do this on the device itself, so lots of duplicated updated activities. I even set up the iPad as new, but the same problem persists

Any ideas?

iMac, Mac OS X (10.7.1)

Posted on Nov 4, 2016 8:10 AM

32 replies

Nobbie67 Author

Level 1

24 points

Nov 10, 2016 12:28 AM in response to Rboblee2012

This happens at anytime of day or night for me - so I doubt it's a peak time issue?

Nov 10, 2016 2:42 AM in response to Nobbie67

I found that turning off "Simultaneous Downloads" had a positive effect on the error, I managed to download all updates at once without any more errors showing up.

Almost sound like a bandwidth issue but I know that is not the case on my end, maybe iTunes somehow is causing bottleneck effect, therefore causing this error which may be a form of timeout error.

TSEAC

Level 1

8 points

Nov 10, 2016 5:37 AM in response to Nobbie67

Turning ‘Allow Simultaneous Downloads’ off and on seems to help here.

keithru

Level 1

9 points

Nov 10, 2016 11:43 PM in response to Nobbie67

This problem seems to centre around the question of how many apps are being updated. Any more than the three allowed in my simultaneous update and the very next one elicits the 8392 error. If the software testers had checked that the update mechanism will allow the stacking of app updates and have them re-entrant then I believe this problem would go away. Also, allowing more simultaneous updates would be a good idea. This has been seen on a supposed professional machine. I have a Mac Pro tower and my older 2.1 tower is of a much better quality which I can sadly no-longer update. Progress is a mean thing!

Nov 10, 2016 11:43 PM in response to Nobbie67

I've had this problem for a couple years, at first suspecting it was Apple's fault and would eventually be fixed in a later iTunes version, then believing it was a problem with my in-house DNS server or something to that effect.

I've recently removed a lot of variables, however, and find the problem still happens; it seems very clear to me that it is an Apple/iTunes issue, and likely a server issue.

I suggest everyone visit https://bugreport.apple.com/ and report this.

aunkst

Level 1

26 points

Nov 10, 2016 5:27 PM in response to Nobbie67

same problem for me for weeks

Nobbie67 Author

Level 1

24 points

Nov 14, 2016 11:41 PM in response to Nobbie67

This problem seems to have gone away now, at least for the last 4 days? Simultaneous downloads are working fine, no more 8392 errors

Nov 15, 2016 2:35 AM in response to Nobbie67

As everybody is noticing: The problem occurs irregularly. Must have to see something with network load and failing handshakes. Interestingly, error 8932 never occurs when demanding an iOS update. Then all servers and networks are working perfectly, though technically (when doing it from a desktop mac) it is a similar process. Is there a second class server structure for external apps?

DBdallas

Level 1

4 points

Nov 30, 2016 10:17 AM in response to Nobbie67

I'm so tired of this. It has been happening off and on for months. Latest Mac and iOS software and it just started again this morning. Can't update apps in iTunes on Mac or iPhone 6s.

pedant

Level 1

4 points

Nov 30, 2016 2:24 PM in response to Nobbie67

Same problem on and off for weeks. And downloading the apps on iOS doesn't work (although no error appears). I am using a US iTunes account currently in Australia.

Nov 30, 2016 4:01 PM in response to Nobbie67

Aloha, I found that deleting the app from iTunes and placing the file in the trash, then going into the purchased apps page at the App store, click on the "Not on my iPhone/iPad" tab at the top of the page and reload the deleted apps usually will cure this problem.

Nobbie67 Author

Level 1

24 points

Nov 30, 2016 11:28 PM in response to SubCableGuy

I think now it's to do with Apps which are purchased on the iPhone/iPad not syncing correctly with the iTunes update, so what you have suggested may work, but that's an awful lot of apps in my case as I tend to buy them on the iPhone/iPad. Transfer purchases doesn't make a difference. Come on Apple get this sorted.

Nov 30, 2016 11:38 PM in response to Nobbie67

It's funny because even tough I have had this problem reoccur again today with my iPhone my iPad updated its apps without any issues. Go figure!

Dec 2, 2016 4:06 AM in response to Nobbie67

There are dozens of threads on this issue on the discussion board.

A few of the others:

https://discussions.apple.com/thread/7725823

https://discussions.apple.com/thread/7732109

https://discussions.apple.com/thread/7732194

https://discussions.apple.com/thread/7734815

https://discussions.apple.com/thread/7743357

https://discussions.apple.com/thread/7743358

https://discussions.apple.com/thread/7744067

https://discussions.apple.com/thread/7769146

I emailed Apple, and received the following totally unhelpful and unprofessional (non-) reply, complete with signature from "XX_AdvisorFirstName_XX".

---

Thanks for choosing Apple.

Hi Dan,

Thanks for contacting us.

I understand that you’re receiving an error message when trying to update the apps on your iOS device. I know how much you would like to have your concern immediately addressed so that you can get back on to updating these. I’ll be happy to provide information for your concern.

I looked into your account and I’m unable to see anything that would prevent your from updating your iOS apps. Please make sure that you’re using a strong Wi-Fi connection and that your softwares are up-to-date.

If the issue still persists, contact our technical support team. You can provide more details on the issue you’re experiencing and they can further isolate this and provide troubleshooting steps. I’ve provided their contact information below for your convenience:

Canada 1-800-263-3394

You can find troubleshooting tips, how-to articles, and moderated discussion forums on our support website:

http://www.apple.com/support

These resources are free of charge and available 24 hours a day, 7 days a week.

I trust that our Technical Support Team will be able to fully resolve the issue you’re experiencing. Should you need further assistance with regard to your iTunes Store purchases, please don't hesitate to get in touch with me again. I’m just an email away and always here to help.

Thanks,

XX_AdvisorFirstName_XX
iTunes Store Customer Support
http://www.apple.com/support/itunes/ww

---

CGP72

Level 1

4 points

Dec 5, 2016 8:46 PM in response to Nobbie67

I have found limited success by unchecking the "Simultaneous Downloads" box when updating all apps.

Syncing a device with the current version of the apps doesn't seem to actually sync the updated app to the computer...

iTunes Error 8392