I have a fritzbox router connected to a tplink poe switch in my utility. from there I have 2 ethernet cables going to opposite ends of my home with x50 poe devices at each end. one of the x50 works fine for both power and wired Internet. however the 2nd x50 will get power fine but won't use the wired Internet and only connects to the other x50 over WiFi. I have tried different configurations that tell me this is not a cable issue. why is the second x50 using the cable for power but not Internet.