ubuntu – Docker OpenVPN AS conflict with my Nginx. I couldn’t access anything from internet when both run

I already install my nginx without using docker and place it normally on port nginx for http and https access.

Right now, I want to install OpenVPN AS but using docker image that provided by OpenVPN.

The issue came out when the tcp port already used for nginx, I switch the port exposed 443 into anyother port free.

My SSH connection is not broken and no issue. In others hand, I couldn’t access any pages or anything on internet, including my pages.

The configuration is standard, I use standard Nginx configuration without any customize. Only config the reverse port I want into my domain. The docker image for openvpn-as also not customize, only when running image, I expose the port into the different port from tutorial But the docker port still same as tutorial.

I already try to shut the nginx and run openvpn-as independently and run without any issue.

Hopefully someone could point reference or how to solve this.