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I set up a SoftEther VPN Server on a Windows machine. I can connect to it using the SoftEther VPN Client on multiple other machines. I recently installed the VPN Client on a new Windows machine and I'm getting an Error Code 1 - unable to connect to the server.

The new machine is using Windows Firewall and Avast Security (I added the VPN client as an exception). Any thing else I could try to get the connection happening?

Here are the VPN logs:

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)
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  • Is there a log that tells you what is going on? VPN logs are normally helpful. Is the problem computer using Wireless to connect? And then if so, is the NIC on a Public Connection (change to Private). – John Apr 19 '20 at 23:15
  • Hello, I added the logs, thank you for that. And the problem computer is hooked up via Ethernet. – Kat Apr 19 '20 at 23:25
  • The servers are fine - other clients connect. All clients are fine except for one. Ethernet is normally not an issue. Try updating the Ethernet driver. Uninstall the VPN client, restart and install the VPN client again. Restart again and set up the VPN client. – John Apr 19 '20 at 23:28
  • So I'm remoting into a series of machines and they are all having the same issue, half connected via ethernet half via wireless – Kat Apr 19 '20 at 23:30
  • From your log. Loading configuration file... 2020-04-19 17:05:40.435 Configuration file does not exist. WHY? Adapter "VPN" has been deleted. WHY? New VPN Connection: ... Cause: Connection to the server failed. Check network connection and make sure that address and port number of destination server are correct. THIS suggests the Clients to not have the correct external Server address or possibly subnets are the same at each end. YOU have gone from one client problem to multiple client problems. Get one client configuration working and use that on others. – John Apr 19 '20 at 23:40

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