My setup is as this: 1. movistar rounter as 192.168.0.1 2. connected to TP link router ER7206 3. single connection to a TP-Switch as TL-SG108S V4 as supporting the mesh protocol and with loop detectio

It drive me nuts as I connected the WAN to port 2. In the configuration setup, really port 2 gets not active and is drwan as available. Even on Switch Port tab. Port 2 is not given.