Upstream timed out (110: Connection timed out)

Hi guys,
I cannot create a room session in Jitsi, I am getting this error from docker-compose logs -f web

| 2020/06/25 05:29:34 [error] 225#225: *1 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 190.236.197.185, server: meet.jitsi, request: “POST /http-bind?room=prueba_123456_123456 HTTP/2.0”, upstream: “http://172.18.0.3:5280/http-bind?room=prueba_123456_123456”, host: “meet.mysite.com:8443”, referrer: “https://meet.mysite.com:8443/Prueba_123456_123456”

Why I am getting this error with this IP 172.18.0.3? i did not configure it.
Actually, the local network with IP address: 172.18.0.1
my docker0 IP address 172.17.0.1 (according ifconfig)

I tried these three IP address for DOCKER_HOST_ADDRESS and I am getting the same error. Please could you advise what should be the DOCKER_HOST_ADDRESS?

I tried with all of this address including the external IP address.

I am using Ubuntu 18.04

Please could you advise?
Thanks and Regards