Hello,

I see several inconsistencies here.
The ProfiLux 4 has no Ethernet LAN port.
The ProfiLux 4 cannot work with firmware as old as 5.02.
The ProfiLux 4 has a WiFi ESP module that handles everything network-related and it has its own firmware independent of the ProfiLux firmware.
Can you clarify?
The best thing to do is to open a support ticket so that we can help you directly: https://www.aquariumcomputer.com/sup...ets-enquiries/

Gaël