@Hulo-Mao-23 You didn't mention your C20 HW and FW version. Make sure that you're with the latest for your device. Only LAN1 has this issue or all LAN ports ? The other reason for such issue can be a...

@ChiThien According to "but there is a 20cm section connected by another type of wire, unknown 5 or 5e" this probably a cable issue. There are no limitations regarding satellite routers connected via...

@Ednign WR840N is not a gigabit router and its LAN port are only 10/100mbps capable - that's the reason for the behavior you've described.

@HouseofWindsor Can you post a network status screenshot of AX72 like this:

@PickleRick333 Did you reset the satellite device to its factory settings by the reset button ? I see that it's receiving an IP address in different subnet - 192.168.64.1 while the main device has...

@Nav97 Here's the list of all Easymesh compatible routers.