Our tp-link mesh wifi extender is not working properly, it's connecting to the router and when it does it says Limited Connection. We have 1 main wi-fi router, 1 main mesh router and 2 satellite mesh. The mains are connected to each other but when I try to connect the tp-link to the router it's not working and it only have 1 light even after resetting it.

Somebody help, we need strong wi-fi connection around the house, thank you!