@justin0930 Definitely we are glad to help you. While considering potential loss, we need confirm some information first, please bear with me. What is the current hardware and firmware version of...

@DANIK1956 For the Ethernet powerline adapter, the firmware is made up of two parts: PIB and NVM. So please be assured to upload the NVM file. Meanwhile, once you unzip the firmware, you can see 2...

@Kamleman Hi Kamesam, thanks for your feedback, we have noted that. From your description, seems that the IP interactions among these devices has something wrong. Again great to know that it works...

@mjwndave The TL-WPA4220 kit supports wifi function, with main adapter connected to the router by wired cable, the extender unit can access internet once they are paired. The extender unit will...

@DANIK1956 Click here to get the download link of the firmware for TL-PA4010. Have you tried to upload the NVM file to give it a shot? What will happen then?

@laserbeam Yes, from the led status, all the 3 powerline adapters are working fine. And you can confirm whether you can get internet from them with wired cable connected.