KNX Thing Error:Bridge

Setup, Configuration and Use Beginners
1

Hi there!

I am fairly new to openhab-coding. We build a house with knx and an external person did the programming in ETS and openhab (running still openHAB 3.4.4).

I wanted to add new KNX things, but it doesn’t work. All working things like thermostats, lights etc. are connected to a MDT-Router as a bridge in openHAB.

I tried to recreate the codes of the working things with the new knx thing. It always shows the error error:bridge (offline). What am I doing wrong?

Working code for the garage:

UID: knx:device:MDT-Router:knx_dummy_garage
label: KNX Dummy Garagentore
thingTypeUID: knx:device
configuration:
  pingInterval: 9999999
  readInterval: 120
  fetch: false
bridgeUID: knx:ip:MDT-Router
channels:
  - id: garagentor
    channelTypeUID: knx:rollershutter
    label: Garagentor
    description: ""
    configuration:
      upDown: 4/2/0
      stopMove: 4/2/1
      position: 4/2/9+<4/2/9

Not working code for the gate:

UID: knx:device:MDT-Router:knx_dummy_hoftor
label: KNX Dummy Hoftor
thingTypeUID: knx:device
configuration:
  pingInterval: 600
  readInterval: 0
  fetch: false
bridgeUID: knx:ip:MDT-Router
location: Hofeinfahrt
channels:
  - id: hoftor_impuls
    channelTypeUID: knx:switch
    label: Hoftor
    description: null
    configuration:
      ga: 4/5/3

Long story short: We don’t have that external person available anymore, so I hope to find help here? Why can’t I add new KNX things? As long as I connect the new thing with the MDT-Router, it says error:bridge (offline).

2

How did you create the thing?

I’ve tested to create the same Channel with OH3.4.4 here and the only difference is description, which defaults to "", not null, so please try to change it in code.

UID: knx:device:MDT-Router:knx_dummy_hoftor
label: knx dummy hoftor
thingTypeUID: knx:device
configuration:
  pingInterval: 600
  readInterval: 0
  fetch: false
bridgeUID: knx:ip:MDT-Router
channels:
  - id: hoftor_impuls
    channelTypeUID: knx:switch
    label: hoftor impuls
    description: ""
    configuration:
      ga: 4/5/3