Uma Musume Server Status | Connection Error Occurred Fixes

Here’s a full guide on addressing connection errors in Uma Musume: Pretty Derby (Error Code 390, 102, or general “connection error”) along with recent updates affecting gameplay:

🧭 Why the Connection Error Happens

1. Regional/IP Restrictions

   • Uma Musume often blocks non-Japanese IPs. Many players outside of Japan face bans from certain ISPs or VPN ranges like 219.xxx.xxx.xxx IPs.

2. Server-Side Issues (Error 102, Team Trials)

   • After the July 23, 2025 maintenance, players reported Error Code 102 at login and severe stability issues during Team Trials. Cygames is investigating.

3. Local Conflicts / File Corruption (Error 390, 501)

   • Conflict between Steam and DMM versions, corrupted game files, or residual folders may lead to crashes or repeated errors.

4. Antivirus Interference on PC (DMM version)

   • Microsoft Defender may quarantine key files like libnative.dll, causing game loops or crashes.

✅ Step-by-Step Fixes by Platform

🔹 Mobile (Android / iOS)

1. Restart the Game & Device

   • Fully close the app and relaunch. If needed, restart your phone and router.

2. Clear App Cache / Data

   • On Android: Settings → Apps → Umamusume → Storage → Clear Cache & Data

   • On iOS: Offload the app and reinstall or tap the app’s “reset” option from the title screen’s

3. Switch Network

   • Toggle between Wi-Fi and mobile data (or vice versa), as certain networks or ISPs might be blocked. Some report hotel or airport Wi-Fi failing entirely.

4. Use a VPN with Japanese IP

   • Try reliable options like SoftEther VPN, OpenVPN, or VPNGate, avoiding banned IP ranges (e.g., 219.xxx.xxx.xxx). Free VPNs often reuse blocked IPs.

Also Read : Paramount Plus Error Code 3005 | Step-by-Step Fixes

💻 PC (Steam or DMM Client)

1. Rename or Remove DMM Version Data

   • If using Steam, rename or delete the DMM game folder (e.g. Umamusume_DMM_Backup) to prevent conflicts.

2. Verify Game Files

   • On Steam: Library → Umamusume → Properties → Verify Integrity of Game Files to check for corrupt data.

3. Clear Temporary Game Cache

   • Delete the folder at C:\Users\<You>\AppData\LocalLow\Cygames\Umamusume (or rename it).

4. Antivirus Exceptions (especially Microsoft Defender)

   • Exclude libnative.dll and the game directory from quarantine. Temporarily disable antivirus to do so, then relaunch.

5. Reinstall the Game if Required

   • Uninstall completely, clear all residual files, then reinstall fresh from official sources. Ensure your account is backed up or linked beforehand.

Also Read : Umamusume Pretty Derby Connection Error

🕒 After the July 23, 2025 Maintenance

Even after successful login, Team Trials mode may be unstable or crash (Error Code 102). Cygames compensated players with 50 Carats, and is working on a hotfix.

Recommendations:

• Try restarting or clearing cache again before entering Team Trials.

• If issues persist, wait for an official patch or use only supported modes until resolved.

• You can also report the issue via the official Discord #help channel with screenshots.

📋 Quick Troubleshooting Summary

🗣 Community Tips (Reddit Quotes)

“The game is being limited to Japan only… 9/10 your IP address and ISP has been blocked. You have to use a VPN.”

“SoftEther is really good… free… allows you to choose from a list of servers.”

✅ Final Steps

1. Determine your platform (mobile / PC → Steam or DMM).

2. Follow the relevant fixes above.

3. Use a reliable VPN with Japanese IP if region blocked.

4. If encountering Team Trials issues or Error 102, wait for an official patch.

5. Still stuck? Reach out via official support forms or Discord help channels.