How to Resolve: Uplay Failed to Synchronize Achievements Error

  • Uplay is an online software platform with a digital distribution where video games can be downloaded and played using this tool.
  • When the affected user starts the game, the message “Failed to Synchronize Achievements” appears.
  • This problem can occur in both the PC version and the Steam version.
  • It is not limited to one game: it can happen in Far Cry, Assassin`s Creed, etc.

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There are several things that can cause a Uplay client to fail to synchronize achievements. Firstly, your antivirus or firewall application might block Uplay from synchronizing achievements. What’s more, corrupt game files or invalid host file entries can do the trick.

This tool allows users to download and play video games from an online software platform that offers digital distribution. Similar to services such as Steam, Riot Games, Blizzard Launcher, Epic Games, and others, Ubisoft developed this service to offer client-based user experiences.

Every so often when playing Anno1800, the game crashes and the Ubisoft Connect launcher says “Failed to synchronize achievements with the cloud”. I guess this happens maybe when I get any Achievement in the game?I can’t play the game offline, because I didn’t buy it. I bought uplay+ to get access to it. So this bugs me even more. I pay monthly but then I can’t play because the game shuts down every few minutes.Sometimes when I try to start the game, the same error shows up, but I can skip it and the game starts. Just to crash five minutes later.

So, if you play any of Ubisoft`s games on your PC and get an achievement-related error message every time you launch the game, this Techquack guide is for you. Here we told you how to fix achievements synchronization failures in Uplay.

What is the reason for not being able to sync achievements from Uplay?

In this article, I’m addressing a bug related to Far Cry 6, an Ubisoft Connect bug. Funny thing is, I covered a bug related to Ubisoft Connect in my last article. In the context of my own experience with the bug, I am not surprised. Far Cry 6 is giving an error message when users close it or click the Play button, which indicates ‘Failed to sync achievements’.

If this error persists, then your Uplay client is blocked from syncing achievements, or your game files may be corrupted or your Uplay host file may have been invalidated.

When the affected user starts the game, the message “Failed to Synchronize Achievements” appears, which the user can ignore. This problem can occur in both the PC version and the Steam version. Moreover, it is not limited to one game: it can happen in Far Cry, Assassin`s Creed, etc. For some users, the problem occurs after installing the game, while for others it occurs after playing for a long time.

The first thing you should do before troubleshooting is to check that Uplay servers are working and that the Uplay client is current.

How to repair Uplay failed to synchronize achievements problem



Updated: February 2024

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Ubisoft Connect Failed To Synchronize Cloud Saves

Start the Uplay PC client by going to the Start menu, selecting Programs, selecting Ubisoft, then clicking Uplay.

Resetting the online status of the Uplay client

The following steps will guide you through resetting your Uplay account’s online status.

  1. The Menu button can be found in the Uplay application.
  2. Wait a while after selecting “Go offline”.
  3. Check the problem now by selecting “Go Online”.

Check the game files

There is a possibility that the game files may have been corrupted. The following steps can be taken to ensure that the game files are intact.

  1. The Games option can be found in the Uplay client.
  2. If you are having problems with a particular game, select it.
  3. Select the “Properties” option from the left panel.
  4. On the right pane, select Verify Files.
  5. The verification process has not yet been completed, so please wait.

Restart the router and change the router’s USB port

Follow these steps to fix the USB hub on your router if the problem persists.

  1. To close Uplay, use Task Manager to stop all related processes.
  2. Once you have done that, turn off your router, disconnect your computer from the Internet, and turn it back on.
  3. Once the router is turned off, wait a while before re-enabling it.
  4. You will need to connect the system to the router later using a different USB port.
  5. Lastly, try Uplay.

End the processes related to Uplay via Task Manager

All Uplay processes should be forced to be restarted and killed using Task Manager.

  1. You can open the Task Manager by right-clicking the Windows icon.
  2. Once you’ve selected Uplay’s process, choose “End Task”.
  3. Check the problem with Uplay after that.
  4. Uplay may not be working unless you reboot your system.



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Frequently Asked Questions

If someone else gets the "Achievement sync failed" error message when starting the game, try setting Ubisoft Connect to "Offline" mode and then back to "Online" mode to re-sync the achievements. Then try restarting the game.

  1. Reset the online status of the Uplay client.
  2. Close Uplay related processes via Task Manager.
  3. Allow Uplay in the firewall.
  4. Remove Uplay-related entries from your system's hosts file.

First, you need to show the hidden folders. It is located in the folder AppDataLocalUbisoft Game Launcherspool Inside this folder is another folder with a long row of letters and numbers. Go to this folder, delete the .spool file and restart Uplay.

First of all, make sure you are using a stable version of Uplay. Then disable cloud sync (uncheck the "Enable cloud backup sync" option in Uplay general settings) and restart the Uplay client. If it worked, great, if not, maybe some of your saves were corrupted by the cloud.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog, techquack.com, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.