@amine23 Hi, is the powerline adapter connected to a router or modem only? And when the three powerline units are all plugged in, are the powerline LED (looks like a little house) light up on all...

@spinningrom Hi, TL-PA4015PKIT have no Wi-Fi function, thus there is no wireless password, could you please double check the model no. of your powerline extender on the product label? And please also...

@graceca Hi, if you unplug the extender, then connect a smartphone to your router WiFi, is the signal strong with full bars when you are next to the router? Besides, to reset the TL-WA855RE, please...

@Shahad_2002 You mean Wi-Fi password? Please note that the extender Wi-Fi password must be exactly the same as that of your router, if not, it will not be able to connect the router's WiFi. Thank you...

@Jeffabiog Hi, may I know the LED status on your range extender? If the signal, 2.4GHz and 5GHz LEDs are all off, it means the extender is not connected to any router Wi-Fi yet, please refer to the...

@Rupi Hi, what is the error message when you try to connect the extended network? After setup, the extended Wi-Fi password is indeed the same as your router wireless password, please make sure you've...