I just wanna share since I found the solution for my problem.
So I have setup proxmox and access it remotely via Ngnix Proxy manager. I have setup reverse proxy as usual for access proxmox.
However, when I access proxmox remotely (via internet ), I noticed time out when I try to launch console of my VM. After few research without success.
I have check the setting on ngnix and found 1 option which is "Websockets Support" still disable. After enable it, problem solved. I can view all the console remotely.

So I have setup proxmox and access it remotely via Ngnix Proxy manager. I have setup reverse proxy as usual for access proxmox.
However, when I access proxmox remotely (via internet ), I noticed time out when I try to launch console of my VM. After few research without success.
I have check the setting on ngnix and found 1 option which is "Websockets Support" still disable. After enable it, problem solved. I can view all the console remotely.
