David-TP wrote @mirdragon Hi, For Deco X50/X55 V1, it might be good news that the latest firmware 1.2.0 has optimized this working mode. Deco will not reselect the wan/lan port until the Ethernet WAN...

@TP-Link Just had this issue myself. I was troubleshooting an internet outage and almost came to the conclusion that the main Deco's Ethernet interface had somehow exploded and taken my modem *and*...