@Juw Hello, you need connect to the extender's wifi first and then open the Tether app to configure it. Besides, you can log into the web UI of the TL-WA850RE to set it up. Below is the instruction:...

@ademe Hello, you can add RE450 on the cellphone; the configuration procedures are the same; Then the Tether app will show up the two extenders. Below is the instruction;...

@ix0 Hello, I'm afraid that there is no such range extender can satisfy your needs yet; the current range extender supports WPA/WPA2-PSK and WEP only. May it help.

@Philip37 Hello, the TL-PA4010 uses HomePlug AV standards, all the TP-Link powerline adapters are compatible with each other, but we are not sure whether they can work together with the Devolo...

@Kim_W Hello, what is the model number of your range extender? You can find it on the back of the actual device. After you changed ISP, you need reconfigure the extender; first, you can hard reset it...

@MatsH Hello, what is the current led status of RE450? Generally speaking, if you can access internet from it by wireless, you can get internet with PC connected by wired cable. Good day.