How to Fix Ubisoft Connect Error Dolphin-028 on Windows 11

Ubisoft Connect is the official game launcher and digital distribution platform for Ubisoft titles, allowing players to purchase games, manage their library, synchronize cloud saves, and access multiplayer services. While the launcher generally works reliably, some users encounter the Dolphin-028 error, which often results in a frustrating login loop. You may successfully enter your credentials only to be redirected back to the sign-in screen or repeatedly prompted to log in without gaining access to your account.

The Ubisoft Connect Error Dolphin-028 is usually related to authentication or connectivity problems. It can be caused by temporary Ubisoft server outages, corrupted launcher cache, network issues, VPN or proxy interference, firewall restrictions, outdated launcher files, or incorrect system date and time settings. In some cases, a damaged installation or an issue with two-factor authentication (2FA) can also prevent the launcher from completing the login process.

Fortunately, there are several troubleshooting methods you can try to break the login loop and restore access to Ubisoft Connect. In this guide, we’ll walk you through the most effective solutions to fix Ubisoft Connect Error Dolphin-028 on Windows 11.

How to Fix Ubisoft Connect Error Dolphin-028 (Login Loop)

Start with the basic troubleshooting steps before moving on to more advanced solutions. After completing each method, try signing in again to see if the issue has been resolved.

1. Check Ubisoft Server Status

Before making changes to your PC, confirm that Ubisoft’s online services are operational.

1. Visit the official Ubisoft server status page.
2. Check for any reported outages or maintenance.
3. Review Ubisoft’s official support channels for announcements.
4. Wait until services are restored if there is an ongoing outage.

If Ubisoft’s authentication servers are experiencing problems, you’ll need to wait until they are back online.

2. Restart Ubisoft Connect and Your PC

Temporary glitches in the launcher or Windows networking services can sometimes trigger authentication issues.

1. Close Ubisoft Connect completely.
2. Open Task Manager (Ctrl + Shift + Esc).
3. End all UbisoftConnect.exe and UplayWebCore.exe processes.
4. Restart your computer.
5. Launch Ubisoft Connect and try signing in again.

Restarting clears temporary processes that may be interfering with the login process.

3. Verify Your Internet Connection

An unstable internet connection may interrupt communication with Ubisoft’s authentication servers.

1. Open a web browser and visit several websites.
2. Restart your router or modem if necessary.
3. If possible, switch from Wi-Fi to a wired Ethernet connection.
4. Avoid using public or unstable networks while signing in.

A stable connection is essential for completing the authentication process.

4. Sync Your System Date and Time

Incorrect date and time settings can cause secure authentication requests to fail.

1. Open Settings > Time & language > Date & time.
2. Enable Set time automatically.
3. Enable Set time zone automatically if available.
4. Click Sync now.
5. Restart Ubisoft Connect.

Accurate system time helps ensure secure communication with Ubisoft’s servers.

5. Clear the Ubisoft Connect Cache

Corrupted cache files are a common cause of login loops.

1. Close Ubisoft Connect.
2. Navigate to the Ubisoft Connect installation folder.
3. Locate the cache folder.
4. Rename it to cache_old or delete its contents.
5. Launch Ubisoft Connect again.

The launcher will automatically recreate a fresh cache during startup.

6. Disable VPN or Proxy Services

VPNs and proxy servers may interfere with Ubisoft’s authentication process.

1. Disconnect any active VPN connection.
2. Open Settings > Network & internet > Proxy.
3. Disable manual proxy settings if enabled.
4. Restart Ubisoft Connect and sign in again.

If the issue is resolved, you may need to configure your VPN to allow Ubisoft services.

7. Allow Ubisoft Connect Through Windows Firewall

Your firewall may be blocking Ubisoft Connect from accessing its servers.

1. Open Windows Security.
2. Go to Firewall & network protection.
3. Select Allow an app through firewall.
4. Ensure Ubisoft Connect is allowed on both Private and Public networks.
5. Save the changes and try signing in again.

If you use a third-party antivirus, check its firewall settings as well.

8. Run Ubisoft Connect as Administrator

Administrative privileges can resolve permission-related issues.

1. Right-click the Ubisoft Connect shortcut.
2. Select Run as administrator.
3. Sign in with your Ubisoft account.

If this works, you can configure the launcher to always run with administrative privileges.

9. Update Ubisoft Connect

Using an outdated launcher can lead to compatibility and authentication issues.

1. Open Ubisoft Connect if possible.
2. Allow it to install any available updates.
3. If the launcher won’t open, download the latest installer from Ubisoft’s official website.
4. Install the update and restart your PC.

Keeping the launcher updated ensures compatibility with Ubisoft’s latest services.

10. Reinstall Ubisoft Connect

If the launcher installation is corrupted, reinstalling it may resolve the problem.

1. Open Settings > Apps > Installed apps.
2. Uninstall Ubisoft Connect.
3. Restart your computer.
4. Download the latest installer from Ubisoft’s official website.
5. Install Ubisoft Connect.
6. Sign in again.

Reinstalling replaces damaged application files without affecting your installed games, although you may need to locate your existing game library afterward.

11. Reset Network Settings

Corrupted Windows network configurations can interfere with online services.

1. Open Settings > Network & internet > Advanced network settings.
2. Select Network reset.
3. Click Reset now.
4. Restart your PC.
5. Reconnect to your network and launch Ubisoft Connect.

This restores Windows networking components to their default configuration.

12. Verify Two-Factor Authentication (2FA)

If you use two-factor authentication, ensure you’re entering the correct verification code.

1. Confirm that your authentication app or email is accessible.
2. Generate a new verification code if necessary.
3. Complete the sign-in process without delays, as codes may expire quickly.
4. If you no longer have access to your 2FA method, contact Ubisoft Support for account recovery.

Authentication issues related to 2FA can sometimes appear as repeated login attempts.

Conclusion

The Ubisoft Connect Error Dolphin-028 login loop is typically caused by authentication failures, corrupted cache files, network issues, or launcher-related problems. In most cases, checking Ubisoft’s server status, clearing the launcher cache, disabling VPNs, synchronizing your system time, or updating the launcher is enough to resolve the issue.If the problem persists, reinstall Ubisoft Connect, reset your Windows network settings, and verify your two-factor authentication configuration. By working through the solutions in this guide, you should be able to break the login loop and regain access to your Ubisoft account without unnecessary frustration.