@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.

@DarknessxKing Archer A6 doesn't support Bandwidth Limit feature. It has been replaced with QoS. Try configuring QoS and check if that works for you - details (Case 3).