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Hi @delcroip

Thanks for your tip :clap: . No only have one server for every environment. And testing your branch but for now, but I have the same problem.

I'm using your more or less configuration but my only difference is the ports and the host because host.docker.internal doesn't work in Linux.

The big problem is I don't have any errors in logs and I insert into containers and run a ping to servers and I've connectivity

root@9847f2f2dcf3:/usr/odk# ping enketo
PING enketo (192.168.48.5) 56(84) bytes of data.
64 bytes from odk-central_enketo_1.odk-central_default (192.168.48.5): icmp_seq=1 ttl=64 time=0.095 ms

root@34c586c9b471:/data# ping service
PING service (192.168.48.8) 56(84) bytes of data.
64 bytes from odk-central_service_1.odk-central_default (192.168.48.8): icmp_seq=1 ttl=64 time=0.166 ms
64 bytes from odk-central_service_1.odk-central_default (192.168.48.8): icmp_seq=2 ttl=64 time=0.089 ms
64 bytes from odk-central_service_1.odk-central_default (192.168.48.8): icmp_seq=3 ttl=64 time=0.089 ms

I never thought that with a docker-compose it would be so difficult to do a test. I'm still working on that .
Thanks

PD: I did a telnet server to enketo and enketo to server and works

equipoim@equipoim:~/Documentos/odk-central$ docker exec -it 9847f2f2dcf3  bash
root@9847f2f2dcf3:/usr/odk# telnet enketo 8005
Trying 192.168.48.5...
Connected to enketo.
Escape character is '^]'.

and

root@42dccfe0f742:/srv/src/enketo_express# telnet service 8383
Trying 192.168.48.8...
Connected to service.
Escape character is '^]'.