The Dolphin-028 error is a known connection and authentication issue that typically affects the Ubisoft Connect launcher.
It usually indicates that the client is having trouble establishing a secure handshake with the servers or that your login session has become “stale.”
Since you’ve been looking into technical documentation for your NHAI Rajmargyatra setup, it’s worth noting that this specific error code is primarily documented for gaming software rather than highway apps. If you are seeing this while trying to play titles like Marvel Rivals or Warframe, here are the most effective ways to clear it:
Most Effective Ways to Clear It
1. Run as Administrator
The simplest fix is often a permissions issue. Close Ubisoft Connect completely (check your Task Manager to ensure no background processes are running), right-click the launcher icon, and select Run as Administrator.
2. Reset Your Network Stack
If the error persists, your local network might have an unstable IP or DNS cache. You can reset these via the Command Prompt:
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Type cmd in your Windows search bar, right-click it, and select Run as Administrator.
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Run the following commands one by one:
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ipconfig /release -
ipconfig /renew -
ipconfig /flushdns
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Restart your computer and try logging in again.
3. Sync Your System Clock
Ubisoft uses time-sensitive security tokens. If your PC’s clock is off by even a few seconds, the server will reject the login.
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Go to Settings > Time & Language > Date & Time.
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Click Sync now under the “Synchronize your clock” section.
4. Clear the Launcher Cache
Corrupted temporary files can cause a login loop.
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Navigate to your Ubisoft Connect installation folder (usually
C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher). -
Delete the cache folder.
Quick Tip:
If you’re using a VPN or a specific DNS (like a custom one for development work), try disabling it temporarily. This error is frequently triggered by traffic-filtering tools that interfere with the TLS handshake.
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