我在 Windows 机器上设置了 SoftEther VPN 服务器。我可以使用多台其他机器上的 SoftEther VPN 客户端连接到它。我最近在一台新的 Windows 机器上安装了 VPN 客户端，但出现了错误代码 1 - 无法连接到服务器。
新机器正在使用 Windows 防火墙和 Avast Security（我添加了 VPN 客户端作为例外）。我还能尝试其他什么方法来建立连接？
以下是 VPN 日志：
2020-04-19 17:05:40.236 ------------------------------------------------------
2020-04-19 17:05:40.236 SoftEther VPN Client Version 4.34 Build 9745 (English)
2020-04-19 17:05:40.236 Compiled 2020/04/05 23:39:56 by buildsan at crosswin
2020-04-19 17:05:40.236 The SoftEther VPN Client Engine has been started.
2020-04-19 17:05:40.434 Loading configuration file...
2020-04-19 17:05:40.435 Configuration file does not exist. Applying the initial settings.
2020-04-19 17:05:40.435 Monitoring the directory "C:\Program Files\SoftEther VPN Client". If the amount of available free disk space becomes less than 8.00 GBytes, the backup files for log files and configurations that are saved on the sub-directories of this directory will be automatically deleted in the order of oldest first. The amount of free disk space that determines when to start deletion can be modified by changing the "AutoDeleteCheckDiskFreeSpaceMin" item in the configuration file.
2020-04-19 17:06:41.847 A Virtual Network Adapter "VPN" has been created.
2020-04-19 17:08:03.871 The Virtual Network Adapter "VPN" has been deleted.
2020-04-19 17:09:51.715 A Virtual Network Adapter "VPN" has been created.
2020-04-19 17:11:59.864 The Virtual Network Adapter "VPN" has been deleted.
2020-04-19 17:23:47.844 A Virtual Network Adapter "VPN" has been created.
2020-04-19 17:28:15.326 A new VPN Connection Setting "New VPN Connection" has been created.
2020-04-19 17:28:18.012 Connection processing for VPN Connection Setting "New VPN Connection" has started.
2020-04-19 17:28:18.012 VPN Connection Setting "New VPN Connection": Connection operation starting (this is now 1 times).
2020-04-19 17:28:28.136 VPN Connection Setting "New VPN Connection": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 17:31:08.134 Connection processing for VPN Connection Setting "New VPN Connection" has started.
2020-04-19 17:31:08.134 VPN Connection Setting "New VPN Connection": Connection operation starting (this is now 1 times).
2020-04-19 17:31:18.609 VPN Connection Setting "New VPN Connection": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 17:34:54.548 Connection processing for VPN Connection Setting "New VPN Connection" has started.
2020-04-19 17:34:54.548 VPN Connection Setting "New VPN Connection": Connection operation starting (this is now 1 times).
2020-04-19 17:35:05.029 VPN Connection Setting "New VPN Connection": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 17:36:09.336 The SoftEther VPN Client Engine has been shut down.
2020-04-19 17:36:09.336 ------------------------------------------------------
2020-04-19 17:39:51.099 ------------------------------------------------------
2020-04-19 17:39:51.099 SoftEther VPN Client Version 4.34 Build 9745 (English)
2020-04-19 17:39:51.099 Compiled 2020/04/05 23:39:56 by buildsan at crosswin
2020-04-19 17:39:51.099 The SoftEther VPN Client Engine has been started.
2020-04-19 17:39:51.240 Loading configuration file...
2020-04-19 17:39:51.240 Monitoring the directory "C:\Program Files\SoftEther VPN Client". If the amount of available free disk space becomes less than 8.00 GBytes, the backup files for log files and configurations that are saved on the sub-directories of this directory will be automatically deleted in the order of oldest first. The amount of free disk space that determines when to start deletion can be modified by changing the "AutoDeleteCheckDiskFreeSpaceMin" item in the configuration file.
2020-04-19 17:39:51.240 The configuration file has been loaded.
2020-04-19 17:40:45.685 Connection processing for VPN Connection Setting "New VPN Connection" has started.
2020-04-19 17:40:45.685 VPN Connection Setting "New VPN Connection": Connection operation starting (this is now 1 times).
2020-04-19 17:40:56.111 VPN Connection Setting "New VPN Connection": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 17:46:49.216 The name of VPN Connection Setting "New VPN Connection" has been changed to "VPN".
2020-04-19 17:46:55.576 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 17:46:55.576 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 17:47:05.702 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 17:53:41.089 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 17:53:41.089 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 17:53:51.578 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 17:59:48.892 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 17:59:48.893 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 17:59:59.391 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 18:00:14.447 VPN Connection Setting "VPN": Connection operation starting (this is now 2 times).
2020-04-19 18:00:24.505 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 18:00:25.916 VPN Connection Setting "VPN": Connection operation starting (this is now 3 times).
2020-04-19 18:00:27.174 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: The command has been canceled by user. (code 6)
2020-04-19 18:00:51.798 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 18:00:51.799 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 18:01:02.279 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 18:04:42.770 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 18:04:42.771 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 18:04:53.274 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 18:06:02.926 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 18:06:02.926 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 18:06:13.418 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 18:15:35.029 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 18:15:35.030 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 18:15:45.170 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 18:20:10.272 The SoftEther VPN Client Engine has been shut down.
2020-04-19 18:20:10.272 ------------------------------------------------------
2020-04-19 18:20:12.396 ------------------------------------------------------
2020-04-19 18:20:12.396 SoftEther VPN Client Version 4.34 Build 9745 (English)
2020-04-19 18:20:12.396 Compiled 2020/04/05 23:39:56 by buildsan at crosswin
2020-04-19 18:20:12.396 The SoftEther VPN Client Engine has been started.
2020-04-19 18:20:12.579 Loading configuration file...
2020-04-19 18:20:12.580 Monitoring the directory "C:\Program Files\SoftEther VPN Client". If the amount of available free disk space becomes less than 8.00 GBytes, the backup files for log files and configurations that are saved on the sub-directories of this directory will be automatically deleted in the order of oldest first. The amount of free disk space that determines when to start deletion can be modified by changing the "AutoDeleteCheckDiskFreeSpaceMin" item in the configuration file.
2020-04-19 18:20:12.580 The configuration file has been loaded.
2020-04-19 18:20:24.849 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 18:20:24.849 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 18:20:35.346 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 18:45:52.329 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 18:45:52.330 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 18:46:02.808 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 18:46:17.874 VPN Connection Setting "VPN": Connection operation starting (this is now 2 times).
2020-04-19 18:46:19.240 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: The command has been canceled by user. (code 6)
2020-04-19 18:49:05.742 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 18:49:05.742 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 18:49:16.243 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)
2020-04-19 19:05:29.811 Connection processing for VPN Connection Setting "VPN" has started.
2020-04-19 19:05:29.811 VPN Connection Setting "VPN": Connection operation starting (this is now 1 times).
2020-04-19 19:05:40.310 VPN Connection Setting "VPN": The connection has been either disconnected or it failed. Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. (code 1)