I installed using Linuxserver.io image from docker hub via Portainer GUI. Used only given parameters like config, PUID, PGID and TZ. The issue is when I open my Pi 4 IP HTTP://xx.xx.xx.xx:8851 or https://xx.xx.xx.xx:8853 on the same device with the same or different browsers I see the devices. If I open on any other device I'm not able to see other devices. (Mac, Windows, Android, iOS tried everything).
The website snapdrop.net works fine on all devices so I'm guessing no changes necessary on Network Config or device config.
Do I need to change something on Conf files to make this work on self-hosted instances? Am I missing some things?