Same here i would love to use both on my machine, but for the moment docker wins.
Simple stop of docker service is not enough to have access to port 3670. This indicates some configuration issue.
I followed votdevs hint and added --iptables=false on the commandline of docker.service.
nano /lib/systemd/system/docker.service
Code
[...]
[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd --iptables=false -H fd:// --containerd=/run/containerd/containerd.sock
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutStartSec=0
RestartSec=2
Restart=always
[...]
Alles anzeigen
systemctl daemon-reload
systemctl restart docker.service
reboot
After this reboot access to all docker containers and to file browser port was possible.
Unfortunately this endangers dockers security concept and could not be the final solution.