I believe to have found a solution to a problem I have in the openWRT documentation but I don't understand the explanation. The article I'm referring to is DNS and DHCP configuration examples
If I assign a static IP address to a MAC address in a set up with more than one interface how do I add a separate host entry to an interface as the documentation says I should?:
If you plan to connect more than one interface simultaneously, add a separate host entry for each interface, otherwise it's unreliable.