[mv] Counter connection error code 20 1 My securities account cannot be opened. This prompt is displayed.

1. On weekends, securities companies usually have server maintenance time, so they can't surf the Internet or there will be a password error prompt. Don't worry too much. You can try again the night before the trading day or before the opening. If not, contact the broker. If antivirus software and firewall are installed correctly, you won't be poisoned. 2. The connection failure of middleware is not caused by computer ...