@TP-Link yes, the cables are CAT6 The speed is stable, 240mbps, and we measured it with a computer on both ends and it got 240mpbs. the M5 is blocking the speed (dropping it down to 100mbps) for...

@TP-Link I got the same problem here with a 3pack m5. I previously used 10/100 cables in my home, so I switched all of them to 10/100/1000 (giga) cables. The 2 m5 units that were plugged on 10/100...