Updating 3CX

After each 3CX update, you need to edit the nginx.conf file. 

Add

location ~ ^/webapi/?(.*) {
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://127.0.0.1:8081/webapi/$1$is_args$args;
proxy_buffering off;
}

Restart NGINX service