Why doesn't Softether VPN Client's vpncmd connect to a specified server?

I installed Softether on Linux Mint Sonya, ran sudo ./vpnclient start , then I ran sudo ./vpncmd and then, followed the instructions from this tutorial ,pressing 2 for Management of a VPN client, then running remoteenable , then niccreate , "se" as adapter name, accountimport for the file from the tutorial(with changed-updated IP address and port, and changed japan0 name for japan4): # VPN Client VPN Connection Setting File # # This file is exported using the VPN Client Manager. # The contents of this file can be edited using a text editor. # # When this file is imported to the Client Connection Manager # it can be used immediately. declare root { bool CheckServerCert false uint64 CreateDateTime 0 uint64 LastConnectDateTime 0 bool StartupAccount false uint64 UpdateDateTime 0 declare ClientAuth { uint AuthType 0 string Username vpn } declare ClientOption { string AccountName japan4 uint AdditionalConnectionInterval 1 uint ConnectionDisconnectSpan 0 string DeviceName se bool DisableQoS false bool HalfConnection false bool HideNicInfoWindow false bool HideStatusWindow false string Hostname 125.193.56.192 string HubName vpngate uint MaxConnection 1 bool NoRoutingTracking false bool NoTls1 false bool NoUdpAcceleration false uint NumRetry 4294967295 uint Port 1369 uint PortUDP 0 string ProxyName $ byte ProxyPassword $ uint ProxyPort 0 uint ProxyType 0 string ProxyUsername $ bool RequireBridgeRoutingMode false bool RequireMonitorMode false uint RetryInterval 15 bool UseCompress false bool UseEncrypt true } } till here, everything was OK, but then, when I type accountconnect and japan4 as the account name, and then type accountlist , it seems that the status of an account is always "connectING", not "connectED", as in the example in the tutorial, and the VPN doesn't work. I wanna know why? How can I set up my own account for a given server from this list, affiliated with official SoftEther creators , not importing accounts created by others? In general , how to connect this stuff?