Black screen for more than two people

jitsi installed via docker-compose on the local server 192.168.2.197.

.env

HTTP_PORT=8000

HTTPS_PORT=8442

TZ=Europe/Moscow

PUBLIC_URL=https://jitsi.test

DOCKER_HOST_ADDRESS=192.168.2.197

docker ps

ports

COMMAND     PID USER   FD   TYPE    DEVICE SIZE/OFF NODE NAME
docker-pr 18571 root    4u  IPv6 547460260      0t0  UDP *:10000
TEST@TEST-DEV:/opt/rocketchat/docker-jitsi-meet$ sudo lsof -i :4443
COMMAND     PID USER   FD   TYPE    DEVICE SIZE/OFF NODE NAME
docker-pr 18597 root    4u  IPv6 547456935      0t0  TCP *:4443 (LISTEN)
TEST@TEST-DEV:/opt/rocketchat/docker-jitsi-meet$ sudo lsof -i :8442
COMMAND     PID USER   FD   TYPE    DEVICE SIZE/OFF NODE NAME
docker-pr 22756 root    4u  IPv6 547481627      0t0  TCP *:8442 (LISTEN)
TEST@TEST-DEV:/opt/rocketchat/docker-jitsi-meet$ sudo lsof -i :8000
COMMAND     PID USER   FD   TYPE    DEVICE SIZE/OFF NODE NAME
docker-pr 22787 root    4u  IPv6 547477940      0t0  TCP *:8000 (LISTEN)

all users connect via local network. when two people -ok, three - Black screen.
how do i know what the problem?

The same situation here!
You have solved?
You have check org.ice4j.ice.harvest.STUN_MAPPING_HARVESTER_ADDRESSES?