How to Fix AltStore Error 22410: 5 Proven Solutions

If you are reading this, you are likely staring at a frustrating pop-up on your computer or iPhone: “AltStore Error 22410.”

You aren’t alone. This specific error code has become a major headache for the sideloading community, particularly for users running AltServer on Windows. Unlike generic “could not find server” errors, Error 22410 is a specific handshake failure that often points to a deeper conflict between AltServer, your computer’s network settings, and Apple’s authentication servers.

In this comprehensive guide, we will break down exactly what AltStore Error 22410 is, why it is happening right now, and—most importantly—how to fix it so you can get back to using your favorite apps like Delta, uYou+, and more.

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What Is AltStore Error 22410?

At its core, AltStore Error 22410 is a connection and authentication failure. It occurs when AltServer (the software running on your computer) attempts to communicate with your iPhone or iPad to “sign” an application but fails to complete the secure handshake required by Apple’s servers.

While generic errors often mean your phone and computer aren’t on the same Wi-Fi, Error 22410 is more technical. It typically indicates:

• Server Incompatibility: The version of AltServer you are using is struggling to talk to Apple’s latest server protocols.
• Anisette Data Failure: “Anisette” is the data used to verify your session. If this generation fails, the error pops up.
• Windows vs. macOS Disparity: This error is overwhelmingly common on Windows due to how it handles iCloud and iTunes background processes compared to macOS.

Important Update (February 2026): There has been a spike in Error 22410 reports specifically for Windows users. This suggests a recent change in Apple’s server-side verification that the current Windows version of AltServer is struggling to process.

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The “Golden Rule” of Sideloading

Before we dive into the complex fixes, we need to ensure your setup meets the non-negotiable requirements for AltStore. If you don’t have these three things configured, no amount of troubleshooting will fix Error 22410.

Requirement	Why It Matters
Same Wi-Fi Network	Your PC and iPhone must be on the exact same network (e.g., “Home-5G”).
Network Profile	Your Windows network must be set to “Private,” not “Public,” or your firewall will block the connection.
iTunes/iCloud Version	You must use the classic installer versions, not the Microsoft Store versions.

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5 Proven Methods to Fix AltStore Error 22410

If you have checked the basics and still see the error, work through these solutions in order.

1. The “Classic” Reinstall Method (Most Common Fix)

The number one cause of Error 22410 on Windows is using the Microsoft Store versions of iTunes and iCloud. These “modern” apps are sandboxed and prevent AltServer from accessing the system files it needs to sign your apps.

Step-by-Step Fix:

1. Uninstall Everything: Go to Settings > Apps and uninstall iTunes, iCloud, and AltServer.
2. Restart: Reboot your computer to clear any lingering registry keys.
3. Download Classic Installers: Do not go to the Microsoft Store. Download the specific installers directly from Apple (links usually found at the bottom of the AltStore download page):
   • Download iTunes for Windows (64-bit) direct installer.
   • Download iCloud for Windows direct installer.
4. Reinstall AltServer: Download the latest setup.exe from the official AltStore website and install it.
5. The Critical Step: Launch iCloud and ensure you are logged in. Then launch iTunes and authorize your computer.

2. The Hotspot Workaround

Sometimes, your home router’s firewall or security settings (like “AP Isolation”) are the invisible culprit blocking the connection, triggering Error 22410. We can bypass your router entirely.

How to do it:

1. Disconnect your computer from your home Wi-Fi.
2. On your iPhone, go to Settings > Personal Hotspot and turn on “Allow Others to Join.”
3. Connect your Windows PC directly to your iPhone’s Hotspot.
4. Plug your iPhone into the PC via USB.
5. Try to install or refresh AltStore now.

Why this works: This creates a direct local area network (LAN) between your phone and PC, removing your router’s firewall from the equation.

3. Force Admin Privileges

AltServer modifies system files to generate the “Anisette” data needed for Apple ID login. Windows sometimes restricts this if the app isn’t running with high enough clearance.

• Close AltServer completely (check the system tray).
• Right-click the AltServer shortcut.
• Select Run as Administrator.
• Try the installation again.

4. The “Mac Swap” (If Available)

If you have access to a Mac—even an old one—use it. The architecture of macOS allows AltServer to run much more natively (using the Mail app plugin).

Many users report that simply installing AltStore using a Mac fixes the issue. Once AltStore is on your phone, you can sometimes go back to using your Windows PC for weekly refreshing, as the initial “handshake” was successfully completed on the Mac.

5. Switch to SideStore (The Permanent Workaround)

If Error 22410 persists despite all efforts, it might be time to switch to SideStore. SideStore is a community fork of AltStore that removes the need for a computer entirely after the initial install.

How SideStore is different:

Instead of talking to a computer (AltServer) to sign apps, SideStore uses a specially designed internal VPN on your iPhone to trick the device into thinking it is talking to a local computer.

• Pros: You can refresh apps anywhere (on the bus, at work) without a PC.
• Cons: The initial setup is slightly more complex.

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Why Is This Happening Now?

You might be wondering, “My AltStore worked fine for months. Why did Error 22410 appear today?”

Software development is a cat-and-mouse game. Apple frequently updates the server-side protocols for how Apple IDs authenticate. When they change a protocol, tools like AltStore (which “imitate” legitimate developer activity) break until the developers patch them.

Error 22410 is the specific code AltStore uses when that backend authentication fails. If you are seeing this during a “wave” of reports, it usually means Apple changed something on the backend, and you may simply need to wait for an AltServer update (e.g., version 1.7.x or higher).

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Frequently Asked Questions (FAQ)

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At The End

AltStore Error 22410 is a roadblock, but it is rarely a dead end. For most Windows users, the culprit is almost always the Microsoft Store version of iTunes/iCloud or a network firewall issue.

Your Action Plan:

1. Verify: Ensure you are using the “Classic” installers for iTunes and iCloud.
2. Connect: Try the Hotspot method to rule out router issues.
3. Update: Check for a new version of AltServer if this is a widespread outage.

Sideloading gives you freedom over your device, and troubleshooting is unfortunately part of the price of admission. Follow the steps above, be patient, and you will be back to playing retro games or watching ad-free videos in no time.