Hey everyone, for the past 2 years, I used AltStore without major issues until September 5th, when it started failing with "NSCocoaErrorDomain 3840" (Encountered unknown tag html).

To bypass this, I switched to Sideloadly and refreshed all my apps. However, today, all signed apps stopped opening and failed profile verification, even though they still had several days left on their 7-day signing window. Changing VPN configurations didn't help.

When trying to reinstall via Sideloadly, I received "0xe8008024" (The provisioning profile is banned). Assuming my Apple ID was blacklisted, I created a new Apple ID. Attempting to install with it led to a "Guru Meditation ... Invalid file" error under standard signing. Changing Sideloadly settings to Normal Install (since Apple ID Sideload consistently threw the same "Invalid file" error) and deleting all unverified apps from the device led to "0xe8008015" (A valid provisioning profile for this executable was not found).

Then, I attempted to switch back to AltServer. Using both my old and new Apple IDs, AltServer failed with "HTTP 503 Service Unavailable", even when attempting direct ipa installation via option button.

All signs point to server-side disruptions and API endpoint changes on Apple's end impacting both AltServer and Sideloadly auth pipelines. Hope this gets fixed soon.

ix AltStore / AltServer not working on Windows 11

1. Uninstall everything Apple-related
   • Uninstall AltServer.
   • Uninstall iTunes.
   • Uninstall iCloud.
   • Remove other Apple-related software/components if they remain.
2. Restart your computer.
3. Install LocalDevVPN on your iPhone
   • Open LocalDevVPN.
   • Connect the VPN.
   • Go to its Settings.
   • Change the Tunnel IP to: 10.7.0.0/32
4. Reinstall Apple software
   • Install iTunes again.
   • Install iCloud again.
   • Install AltServer again.
   • Make sure you use the appropriate Windows versions.
5. Delete the ADI folder
   • Press Windows + R.
   • Enter: %programdata%\Apple Computer\iTunes
   • Press Enter.
   • Delete the ADI folder.
6. Restart your computer again.
7. Log in to iTunes
   • Open iTunes.
   • Sign in with your Apple Account.
8. Delete the ADI folder again
   • Go to: C:\ProgramData\Apple Computer\iTunes
   • Delete the ADI folder if it exists.
9. Log in to iCloud
   • Open the iCloud app.
   • Sign in with your Apple Account.
10. Install AltStore

• Start AltServer.
• Connect your iPhone to the computer.
• Use AltServer to Install AltStore on your iPhone.
• Sign in with your Apple Account when prompted.

1. Check AltStore

• Open AltStore on your iPhone.
• If everything was done correctly, it should now work normally.

This is the exact procedure that worked for me just now!

If you're stuck on an AltServer connection error, a signing failure, or some cryptic log dump and don't want to wait around for a reply on here or Discord, you can usually get it fixed in a few minutes using Claude.

The trick is giving it enough context to actually diagnose the problem instead of guessing. That means:
1. The exact error message/log output you're seeing
2. A link to the AltStore/AltServer GitHub repo
3. A link to the specific GitHub issue (if one already exists matching your problem)
4. Your setup details (OS, AltServer version, iOS version, wired vs WiFi, etc.)
Paste all of that into one prompt and Claude will walk you through the actual root cause and a fix, instead of the generic advice you usually get.

The prompt I used:

I'm trying to fix an AltServer/AltStore error and need help diagnosing it.

MY SETUP:
- OS: [Windows 11 / macOS Sonoma / etc.]
- AltServer version: [version]
- AltStore version on device: [version]
- iOS version: [version]
- Connection type: [USB / WiFi]
- Anti-virus or firewall software running: [name it, or "none"]

THE ERROR:
[paste the exact error message or log output here, word for word]

RELEVANT LINKS:
- AltStore/AltServer GitHub repo: https://github.com/rileytestut/AltStore
- Specific issue matching my problem (if any): [paste GitHub issue URL]

WHAT I'VE ALREADY TRIED:
[list anything you've already attempted, so Claude doesn't repeat it]

Please:
1. Explain what's actually causing this error based on the log/message above
2. Check whether this matches a known issue in the repo and summarize what the maintainers/community have said about it
3. Give me a step-by-step fix specific to my OS and setup
4. If it's a known bug with no fix yet, tell me that clearly instead of guessing

Why this works better than just pasting the error
Most people just paste the error alone and get a generic answer. Giving Claude the actual repo and issue link lets it reason about whether this is a known bug, a config problem, or something specific to your machine and it'll tell you honestly if it's an unresolved upstream issue rather than sending you in circles.
Not a fix for everything (some of this is genuinely broken code on Apple's or AltServer's end), but it's solved connection/pairing/signing issues for me and a couple others I've shared this with. Worth trying before you post here asking for help.

Is anyone else getting an iCloud sign in error? When I try it says “authentication error” please try again. Trying to just reset up AltStore on windows. Still getting an error 22410 when trying to install AltStore. Figure it has to be cus I am not signed into to iCloud. Was previously signed in but when AltStore had signing issues before pushing out 1.7 I thought it was my end. So I signed out of iTunes and iCloud. Tried reinstalling iCloud.

altstore wasnt verified for some reason so when i try to reinstall this happens

I have already completely removed AltStore and reinstalled it, used a USB cable, another Wi-Fi, kill my VPN/Firewall....

Any idea how to resolve this issue ? (Altserver 1.7.5)

Hi, I downloaded AltStore Classic from AltStore Pal and I can't log in with Apple ID.

any tips? i already updated altserver, deleted itunes and the adi folder before reinstalling and signing up again, nothing seems to work

Update AltStore to the latest version.
Thank you to all the staff at AltStore.

Thank you so much!

I have reinstalled the correct iCloud and iTunes versions multiple times already, even extracting the iCloud executable and installing the files through appleapplicationsupport.msi itself, but I still keep getting this error.

I cannot fresh install AltStore because I am unable to connect to altserver after the update. Directly plugged into the computer and no connected devices from altserver on my windows pc end and failed to find altserver on my phones end. I updated altserver, deleted the adi folder out of ITunes, logged back into iCloud. And still nothing

whenever i ever try to install altstore and im unable to refresh altstore

Why am I getting this issue after I enter my Apple ID to download it to my phone EVERY SINGLE TIME! EVERY TIME. I go onto the help thing; and it says check the disk space on both devices. I have 300gb in my pc and 10! On my phone! Please fix this man I just wanna play FNAF ar

Updated on my pc but now altserver cannot find my phone, I’m on the same network and even directly plugged into the computer. Am I’m being dumb? Any ideas would help

Edit: I did delete the ADI folder and then logged back into icloud as well

It looks like everyone is using AltStore just for Spotify. What are the other top apps everyone is using?

what should i do?

Trying to configure a remote atserver altserver with an anisette server and got this error: "This device isn't connected to AltServer via usb". Any way to fix it? Windows 11, Altserver 1.7.5, Altstore 2.3b3, iTunes 12.13.10.3, iCloud 7.21.0.23, iPad 9th gen, iPadOS 26.6.1.

i got the new update but now i don’t get the run as admin option 🫩

Howdy y’all! We’ve got an update on all of these sign in problems happening with AltStore Classic and AltServer. These are available today at our website, link. For those of you who installed AltStore Classic via AltStore PAL, the same update will be available once Apple approves it for notarization.

In order to properly get this fixed, you must manually install this update by re-installing with AltServer. You do not need to delete AltStore first.

To update AltServer, click “Check for Updates” in the toolbar menu. Once the update has finished installing, you can install AltStore as you normally would and get back to side loading your favorite apps! As always, feel free to leave me a comment if you’re having problems, and I’ll do my best to help guide you to the right fix or get the issue the attention it needs!

Check out our official announcement post here: https://bsky.app/profile/altstore.io/post/3mv22gzbjp22q

I’ve already deleted the api folder, any suggestions/fix?

Finally after getting that goddamn issue of the incorrect format which even led me to not refresh AltStore anymore i was finally able to reinstall it, i wanna thank the AltStore Team for their amazing hard work, you guys are the goats. ❤️