Roon is losing connection to extensions

Hi,
I am running Roon on a NUC8i3, OS is Euphony. Roon extensions on RPI3+, OS is Dietpi.

The connection between Roon and the extensions is not stable. Very often the extensions ar not there anymore. My extensions are:

  • Roon Extension Manager
  • MQTT Extension
  • Sharoon
  • macro.on

I also have Home Assistant extension, but this one is on another machine. This is the only one which is always there.

Are there known issues with Raspberries or Dietpi?

Does anyone experience the same?

Regards,
Tom