Having the same issues running it on EC2 with port 8000 opened through security groups. Unfortunately the patch is currently not working anymore because ssl.py is updated to a newer version. Strange enough when changing the port to 80 and disabling the default nginx config, i can acces it through http, but i'm almost 100% sure the ports are opened.

Update: a port check confirms port 8000 is open. Still Ajenti is unable to bind to '0.0.0.0', 8000