Working with Docker on road

Hi,

I’m new to Docker and want to be able to work with it when I’m on Road…

when I’m online its working fine… or connected to an WLAN / LAN.

but once I’m traveling, and i start the container I can’t connect anymore… (localhost:xxx).

Even if I start an hotspot on my Handy and being online, It’s still not possible to open the container service in Browser.

Docker Ver: 18.09.0
macOS Mojave

any Ideas?

Cheers