How to Fix Wunderlist Not Syncing on Windows 11: Step-by-Step Solutions

Wunderlist is a popular task management app that helps you stay organized. However, sometimes it may stop syncing your tasks on Windows 11. This can be frustrating if your lists do not update across your devices.

Syncing issues can occur due to various reasons like connectivity problems, app glitches, or account errors. Fortunately, most sync problems can be fixed with simple troubleshooting steps. This guide will walk you through easy and effective solutions to get Wunderlist syncing properly again.

Each step is explained in detail so even beginners can follow along without confusion. We will start with quick checks and move towards more advanced fixes if needed.

By the end, you should be able to resolve sync issues and keep your tasks up to date on Windows 11.

Quick Note: Before You Begin

Before diving into troubleshooting, make sure you have the following checked:

Internet connection: Syncing requires a stable internet connection. Ensure you are connected to Wi-Fi or Ethernet.
Wunderlist account: Verify you are logged into the correct Wunderlist account on your device.
App updates: Confirm the Wunderlist app is updated to the latest version from the Microsoft Store.
Windows updates: Make sure your Windows 11 system is up to date. Sometimes system updates fix app compatibility issues.

Step 1: Restart Wunderlist and Your Computer

Often, a simple restart can resolve temporary glitches causing sync problems.

Close the Wunderlist app completely. To do this, right-click the Wunderlist icon in the taskbar and select Close window.
Press Ctrl + Shift + Esc to open Task Manager. Look for any Wunderlist processes, select them, and click End task.
Restart your computer. This refreshes system resources and clears minor errors.
Open Wunderlist again and check if syncing works.

Why this helps: Restarting closes background processes that might be stuck or conflicting with the app’s sync function.

Step 2: Check Your Internet Connection

Syncing depends on a stable internet connection. If your connection is slow or unstable, Wunderlist may fail to sync.

Try opening a website in your browser to confirm connectivity.
If the internet is slow or disconnecting, restart your router.
Switch to a different network if possible, such as a mobile hotspot, to test if the problem is network-related.

Why this matters: Without internet access, Wunderlist cannot communicate with its servers to update your tasks.

Step 3: Sign Out and Sign Back Into Wunderlist

Sometimes, your account session can become corrupted, preventing proper syncing.

Open Wunderlist and click on your profile icon or name.
Select Sign out from the menu.
Close the app, then reopen it.
Sign back in using your Wunderlist email and password.
Check if the tasks start syncing again.

Why this works: Signing out resets your connection with Wunderlist’s servers and reloads your account data.

Step 4: Clear Wunderlist Cache

Cached data can sometimes interfere with syncing. Clearing the cache forces the app to download fresh data.

Press Windows + R to open the Run dialog box.
Type %localappdata%PackagesWunderlist.Wunderlist_8wekyb3d8bbweLocalCache and press Enter.
Delete all files and folders inside the LocalCache folder.
Restart Wunderlist and check syncing.

Note: Clearing the cache will not delete your tasks as they are stored online.

Step 5: Update or Reinstall Wunderlist

An outdated or corrupted app installation could cause syncing issues.

Go to the Microsoft Store app.
Search for Wunderlist and check if an update is available. If yes, click Update.
If updating doesn’t fix the issue, uninstall Wunderlist:

Open Settings > Apps > Apps & features.
Find Wunderlist in the list and click Uninstall.

Restart your PC.
Reinstall Wunderlist from the Microsoft Store.
Sign in again and test syncing.

Why this helps: A fresh install fixes corrupted files and ensures you have the latest version compatible with Windows 11.

Step 6: Check Windows Firewall and Antivirus Settings

Sometimes, firewall or antivirus software blocks Wunderlist’s connection to the internet.

Open Windows Security from the Start menu.
Go to Firewall & network protection.
Click Allow an app through firewall.
Find Wunderlist in the list and ensure both Private and Public boxes are checked.
If you don’t see Wunderlist, click Allow another app and add it manually.
Also, check your third-party antivirus software settings to make sure Wunderlist is not blocked.

Why this is important: Blocking network access prevents Wunderlist from syncing with its servers.

Step 7: Use the Wunderlist Web Version as a Temporary Solution

If the desktop app continues to have sync problems, try using Wunderlist in your browser:

Go to https://www.wunderlist.com.
Log in with your account credentials.
Check if your tasks are up to date here.

This can help you continue working while you troubleshoot the app.

Frequently Asked Questions (FAQs)

Why is Wunderlist not syncing my tasks on Windows 11?

Sync issues can arise from internet connectivity problems, outdated app versions, corrupted cache, or account login errors.

Will uninstalling Wunderlist delete my tasks?

No. Your tasks are stored in the cloud linked to your account. Reinstalling the app and signing back in will restore your data.

How often does Wunderlist sync tasks?

Wunderlist typically syncs tasks automatically in real-time or every few minutes if connected to the internet.

Is Wunderlist still supported?

Microsoft officially replaced Wunderlist with Microsoft To Do. However, Wunderlist may still work but with limited support and updates.

Can I export my Wunderlist tasks?

Yes, you can export your tasks using the Wunderlist website or third-party tools before switching to another app.

When Nothing Works

If none of the above steps solve your syncing problem, consider the following options:

Contact Wunderlist Support: Visit the official Wunderlist help center for assistance at https://www.wunderlist.com/help.
Switch to Microsoft To Do: Since Wunderlist is no longer actively supported, migrating to Microsoft To Do might provide a better experience on Windows 11.
Check Windows Logs: Use Event Viewer to look for app errors that may give clues to the issue.
Reset Network Settings: If your internet setup is complex, resetting network settings in Windows can sometimes fix hidden connectivity problems.

Conclusion

Wunderlist not syncing on Windows 11 can be caused by simple connectivity issues, app glitches, or account problems. The key is to start with basic fixes like restarting the app and checking your internet connection. Clearing cache, updating or reinstalling Wunderlist, and verifying firewall settings come next.

Using the web version or switching to Microsoft To Do are good alternatives if the desktop app remains problematic. Remember to keep your Windows 11 system and apps updated regularly to avoid sync errors.

Following these step-by-step solutions will help you restore smooth syncing, so you can focus on managing your tasks without interruption.