(1) Check failure/maintenance information

First, please check the following page for any outages or maintenance.

▼ Outage and Maintenance Information
https://support.millenvpn.jp/service-status

(2) Confirmation of troubleshooting

If the problem does not correspond to a failure or maintenance, please check if the error you are experiencing corresponds to any of the errors listed in the troubleshooting section below and see if the problem can be corrected by following the procedures described.

If the above does not improve the problem, please contact us at
with the following information so that we can investigate the cause.

  • Services attempting to connect: MillenVPN App / MillenVPN Native / MillenVPN Native OpenConnect
  • OS and version of your device (e.g. iOS 15 / Windows 10):
  • THE NAME OF THE COUNTRY WHERE THE VPN WILL BE USED:
  • VPN USAGE:
  • Screenshot of the screen where the error is occurring
  • If you are using MillenVPN Native / MillenVPN Native OpenConnect, screenshot of the configuration screen where you can see the connection server address
  • Whether you are connected to a VPN via MillenVPN app or another VPN: (Yes / No)
  • Whether it is possible to change the destination server to connect to: (Yes / No)
  • Whether it is possible to connect by changing the communication line (connecting to a different Wi-Fi or not connecting to Wi-Fi): (Yes / No)
  • If you are using security software, can you connect with the security software stopped: (Yes / No)