Cannot connect external users with jitsi-meet docker (behind NAT)

Hi everybody, I have installed according to the jitsi-meet instructions in docker (behind NAT), and I have the following problem, if I put in .env file

DOCKER_HOST_ADDRESS = 192.168.1.26 (IP docker host)
I can connect with users on the same network (192.168.1.xxx), but not with external ones.

If instead I put

DOCKER_HOST_ADDRESS = Public IP
It does not work for me with internal or external users.

Any suggestion? Thank you