Unknown error 8392

Well, it's back again. More apps not updating on my iMac with the same error as above. Here we go again Apple. You know how to fix it as you did once before after millions of complaints, just shortcut and do it again for us will you? Really irritated at your quality now.

Hi. Take a look here: Get help with iOS update and restore errors - Apple Support

If you see an error when you update or restore your iPhone, iPad, or iPod - Apple Support

I have had the same issue since downloading iTunes 10.5.2, and it got worse with iTunes 10.5.3. I have rebooted, authorized the machine, signed out and back in, all with limited effect. Sometimes I can update 3-4 apps before the message appears, sometimes it doesn't allow me to update at all. I have also tried right-clicking on each app icon to update, which has been more successful, but is a real pain.

I rang Apple about this error and they don't know what it is. They did assign a number to it but they still don't know what it is. Either that or the Apple Support when i ring from Australia are dumb lol. I get it on almost every update now and I have pretty much given up even bothering to update my phone or apps. Love to know the answer by some one smarter than an Apple support staff member

I have the same issue here with my imac runing El Capitan and iTunes 12.5.3.17. If I try to update apps individually I get the 8392 error if I try to - Update All - some apps may download but then iTunes hangs on one app download until I get an Network Time Out Error. This has been happening for a few months now. I first noticed it when the Store was taken down for the launch of iPhone 7. When the store opened again I couldn't download any app updates for several days. I currently have 88 apps waiting for an update in iTunes and all return the same error. There is also a problem on iPhone iOS app udates - this morning I had 12 updates waiting on my iPhone 6S+ and 4 of them refuse to update on my phone.

I've been having the same problem very recently with 2013 iMac with macOS (10.12.1) and iTunes (12.5.3.17). Tried signing out and signing back in. I re-downloaded iTunes and re-installed. Has the look and feel of a problem Apple will likely fix at their end at some point. Most iOS Apps update on their respective devices anyway, and with iCloud Music Library and Photo libraries, I never need to sync anymore anyway. It's actually annoying that at this stage we need to manually update the copies of the iOS Apps through iTunes while the apps update nearly automatically directly in the devices.

I am on chat with Apple right now to try to find a solution. It has only taken an hour so far. If they come back with a solution that works I will post it here.

Having the same issues with El Capitan and same iTunes.

What's unique from what's been posted here is that I can't update apps on my iPhone either.

I'm on Sierra and can't update from my laptop or my phone. This just started today. Yesterday, updates went OK.

Can't update apps on iPad, iMac or iPhone now. Have raised this issue with a DM on Twitter to @AppleSupport perhaps a few of you could rattle their cage on Twitter as well. The last time I had this issue was September 15th after iPhone 7 launch and the problem was fixed after a discussion by DM to @AppleSupport so maybe worth a try.

I also have been unable to download updates to iPhone or mac starting today. Rebooted mac and iPhone, signed out and back in. Nothing helps. Apple's site says there's nothing wrong with the app store. Using latest version of iTunes. Let's hope they fix this soon.

I have spent over 3 hours with apple now to try to resolve it. They do not know what the issue is but it seems not to be our devices. Next step they told me is to escalate it to their Engineers to fix. They did tell me that my call was the first time they had heard of it. I directed them to search their own forums and suddenly they are paying attention. Funny about that. Guess they don't read their own forums.

For me it is now happening all the time on my Mac and most of the time on my phone.