Hi @Jonas_Sjodin ---- Thank you for touching base with me, did you happen to give FING a shot? The application is a very useful tool to identify all the IP addresses of your devices.
From my previous:
"Additionally, can you also please describe your network configuration/topology being sure to provide insight into any networking hardware you are currently making use of. I want to have a clear understanding as to how your device are communicating and all the tools involved with making these connections possible. "
-Eric