iTunes download error -8288

So I found a solution that was used for a different error code but worked for the very issue that I was experiencing as well the steps are indicated below for MAC users.

Learn what to do if you see error -45054 in the iTunes Store. If you don't see error -45054, follow the steps for your computer.

On your Mac

By

default, the built-in application firewall for macOS automatically

allows applications signed by Apple to receive incoming connections. If

you've adjusted the settings for your application firewall, you might

need to allow incoming connections. If the issue persists, reset the cache of accepted certificates:

• Click your desktop to make sure that you're in Finder.
• From the menu at the top of your computer screen, choose Go > Go to Folder.
• In the box, enter /var/db/crls/.
• Click Go.
• Drag the files labeled crlcache.db and ocspcache.db to the Trash.
• If prompted, enter your administrator password.
• Restart your computer, then try to connect to the iTunes Store, App Store, or Book Store.

For PC Users Try:

On your PC

• Check to see if you've turned on third-party security software
• or Windows Firewall. If you have, your settings might not let you
• connect to the iTunes Store, and you might need to change them.
• Check your Windows proxy server settings.
• If you see only a blank white screen with the words iTunes Store on it, you might have a conflict between software that monitors Internet traffic and Apple software.

Good luck folks

I have the same issue, error 8288 not only with updates but downloading new apps too.

Sometime the error becomes 416, but mostly stays at 8288

I guess something is going on on the Apple server ...when you get “friends” with the same errors

the coincidence is too weird or

because I'm able to download the same updates from my i-devices or Apple Configurator

and having itunes 12.6.5

makes me think that Apple has done something blocking iTunes 12.6.5 ?!

I have the same issue. Apple expert said the solution in https://support.apple.com/en-us/HT208079 is not for personal use; downloading apps from iTunes has been blocked. Very little apps can still be downloaded successfully at present.

Jonnoza “It does seem like apple is blocking iTunes 12.6.5 ( listed by Apple as the Enterprise version) https://support.apple.com/en-us/HT208079”

The page you linked is the same page posted a year ago when you could update all apps and iOS

and for it worked till 2 days ago

I know that because I kept the page as reference in case they update iTunes 12.6.5 as they did in the past

I hope it's going to be an uprise among enterprise/business Apple customers. Usually it is what it gets everything back to normal

It happened few times already in the past

Same problem here. Appears to have started Feb 9; continuing on Feb 10.

iTunes 12.6.5.3 on macOS Sierra (10.12.6).

I've been able to download app updates without issue prior to Feb 9.

I've tried several things: restart iTunes, restart MacBook Pro, most of the items listed here, and clearing the caches described here. Also ran the cleaning processes in Onyx and first aid in Disk Utility.

Looks like it's an issue on Mac & PC.

Can Anyone verify if you're seeing the same issues I am? https://discussions.apple.com/thread/250154640

Specifically check for a .app file in your mobile applications folder. I had a few of each app that took up over 6GB in space before I deleted them.

I tried on another computer, MacBook air with HighSierra and the Security update done on Feb 10th.

Gatekeeper date is different on the two computers : one was created on Feb 7th, the other on Feb 8th

On the Macbook air iTunes 12.6.5.3 works and the updates go through perfectly there and Gatekeeper was created on the 8th.

I guess that the updates are not the same and one has a corrupted file or a bug and this could explain why there are different

results even with same system and iTunes .

I tried to download the security update from Apple directly but it's not available any longer https://support.apple.com/en-ca/HT201222

I don't see anything there that matches. As you can see my last successful updates were on 2/8 in the morning. Also, my ".app" files are not zero kb like many others. Mine match the file size of the app. Just look at the Twitter.app file

I'm having this exact problem as well. It started on February 8, 2019 and has continued through today. I've tried some troubleshooting advice from another discussion thread on this issue without any success thus far.

I'm running iTunes 12.6.2.20 and have the same issue.

After discussing with Apple via Live Chat they have said they were 'blocking old versions of iTunes' to prevent them from backing the device up.

I've noticed this issue on one computer but not another (same iTunes version on both). My partner and I - one of us can back up whereas the other can't.

I'm wondering if this kind of 'blocking' is stretching out to app updates too.

Although with some saying they've updated to the latest version of iTunes and still getting this error i don't know what the deal is.

I too am having the same issue with the latest version of iTunes. I was able to download purchases onto two authorized computers that I had made yesterday on my iphone but anything older, is blocked. Also, itunes said I had too many authorized computers even though a long standing authorized computer should have been on the list. Some permissions are really jacked in their database. Time to switch off to Spotify completely.

So I recently noticed this issue on my computer as well. I have Windows 10 and iTunes 12.6.5.3. I also noticed I am not able to delete the APP, and redownload from scratch for the App Store.

I have logged out of my account and logged back in but no difference.

I have also tried a different iTunes library file but that did not work.

I took a shot and blew away iTunes from my computer using Revo Uninstaller, I cleaned the registry, restarted,cleaned the registry again and reinstalled iTunes but that did not help.

I use the older version since I like to be able to manage my apps at a central location and not each device individually.

I'm seeing the identical situation and error numbers using iTunes 12.6.4.3 on Windows. Everything worked fine on 2/7/2019 but failed yesterday, 2/9/2019. I called this in yesterday evening and spent more that 1.5 hours with a wonderful Apple supervisor who was focusing on possible Windows changes. We did many things, including rolling back to a Windows restore point, to no avail. We are scheduled to follow up on this case, and I have contacted her with a link to this discussion thread.

I can confirm for all of my apps that are seeing this issue are in deed creating a .APP file in the Mobile Applications Folder. If I delete the app from iTunes AND the .APP file and redownload it still gives that error. I am using Windows 10.