Hi @Dejan_Beznec,
So we can better assist you, please provide a brief description of your current setup using this link as a guide.
Make sure to describe your network configuration/topology, including any networking hardware currently in use, so we can have a clear understanding of how your devices are communicating.
Are you able to connect the KEFs via Ethernet as a test? Any change when doing so?
Are other endpoints showing up okay?