This error indicates that the device cannot establish an internet connection to the Aron server. Possible reasons include:

  1. Poor or unstable internet connection.
  2. Incorrect account information or wrong server selection (Demo or Real) for the account type.
  3. Interference from VPN, antivirus software, or firewall.

To resolve the issue, please:

  • Verify the accuracy of the login details entered in MetaTrader.
  • Check your internet connection and disable any active VPN.
  • Restart your device.
  • If the problem persists, try logging into your account using a different device.