Here we take TL-PA211 as an example in this article.
To reset the powerline adapters, you have to install the related Powerline Utility on your computer first.
Where to download the utility, please click here.
When installation is done, launch it and you could see the “Reset” button on main page, see as below:
Click the reset button to reset your device.
After reset, all settings are restored back to factory default.