Innogy no data-connection

My Innogy-box looses it’s dataconnection to the Innogy-server every now and then.
As a result of this (I think) the corresponding value’s of the Openhab items are not updated anymore.
Since I plot the value’s of my Innogy systems with Openhab (actual/point temperature etc) this becomes unreliable.

Of course I wan’t to solve the root-cause, but for now I would be glad I I can detect is the connection is alive or not (and thus know if my data is reliable or not). Does anybody has a clue how to do this? It’s not supported by the beta-binding from this post from @oliver_kuhl

Which binding version do you use?

I’m currently ussing org.openhab.binding.innogysmarthome-2.2.0-SNAPSHOT-171110.jar.
Is it correct that the binding is not communicating (directly) to my Innogy controller but to the data-center?