Smart Meter docker ser2net

I am migrating Home Assistant from RPI to Docker on Synology Nas
So far everything works as it used to do, however… I don’t get respons from my smart meter (DSMR =Duch meter that collects data about electricity and gas consumption)

To receive data from my smart meter I use a Raspberry Zero W that sends data with ser2net
In my configuration.yaml I have

- platform: dsmr
  host: 10.0.0.26
  port: 2001
  dsmr_version: 5

On the Raspberry I am still receiving data. Home Assistant on Docker receives data from other local devices. Anyone has had this problem too, and managed to solve it ?

EDIT: I can ping the ip-address within the container

EDIT2: solved, when disabling platform dsmr on Raspberry, dsmr in Docker receives data.
Seems it is not possible to receive data at two devices at the same moment