SoftEther VPN Server connection issue

Installing and Using OpenWrt Network and Wireless Configuration
1

Hi
I have installed SoftEther VPN Server (Version 4.38 Build 9760) on my Mikrotik RB750GR3. I did Server configuration by using Server Manager on Windows 10 PC.
Configuration screen below:

0
0768×550 41.9 KB

1
1738×560 48.1 KB

2
2715×577 57.5 KB

3
3641×589 22.4 KB

Mikrotik configuration:

10
10964×421 22.3 KB

11
11973×471 34.5 KB

12
12892×678 33.4 KB

I am abel to connect remotely to my server using VPN Azure address and SoftEther VPN Server Manager but when i'm trying to connect by using SoftEther VPN Client application the connection with server is lost after 5-10sec and error code 13 aprear.

21

In Manage Sessions i can see that the Client connection is established and the transfer is increasing

20
20791×562 18.8 KB

Do any of you know how to solve this problem?

2

I see you're running a double nat setup - openwrt behind isp device most likely.
In ISP box You need to add openwrt router to DMZ if possible or redirect port 992 for it.
Then in openwrt open port 992

3

Adding the router to the DMZ in the ISP worked.
What if I didn't have access to the ISP device?

https://www.vpnazure.net/en/

If I understand the information on this page correctly, connection using Azure Cloud should work without opening ports and global IP

4

but vpnazure is closed source so I would recommend something like tailscale