@maria17 To get the warranty service, it is suggested to reach out to the local tech support. Below is the contact info of the French tech support....

@RandomGeeza Hello, the TL-WPA4220KIT does not support tpPLC app, do you mean tpPLC utility? After you changed the login password of the TL-WPA4220 via the web portal, is there any error message when...

@Facundo May I know who is your internet service provider? Do you have the configuration parameters given by them? What is the current led status of the TP-Link device? How did you configure it...

@chriz74 For your information, all the TP-Link powerline adapters are compatible with each other, while considering the current TL-WPA7510kit, it is suggested to use 7/8/9 series. If you do not want...

@Rien Hi Rien, the simplest way is to connect your smart phone to the extender's wifi; And please disable the cellular data on your cellphone. May it help and have a nice day.

@Sky_Blue What is the led status of the TL-WA850RE? Please connect your computer to the TL-WA850RE by wired cable directly to verify whether you can access internet. Try to disable and re-enable wifi...