ESPEasy and DSMR/P1

I am currently trying to integrate an ESP8266 board with ESPEasy firmware and a P1 cable into Home Assistant. But I cannot seem to get it working… I am using the following configuration:

sensor:
  - platform: dsmr
    host: 192.168.178.25
    port: 8088
    dsmr_version: 4

When using either curl or socat to check these paramters, they all seem correct. I also seem to get a version 4.2 DSMR response from the board. Also the included dsmr_console command is working correctly. I have also tried all the suggestions in this topic: Support for reading Dutch Smart Meter (electricity/gas) (P1 port).

Still without any errors, it doesn’t seem to work. I am not receiving any kind of data. What am I doing wrong? How can I fix this?

Bump… anyone?