TP-Link TL-WA855RE User Manual page 5

(Range Extender/WPS) Button:

function, you can press the WPS button and then press the RE button of the
extender to establish a secure connection between the wireless router and
the extender.
RESET: This button is used to restore the extender's factory default settings.

There are two ways to reset the extender:
Option One: While the extender is powered on, use a pin to press the
RESET button, and the LED should turn off momentarily. Release the button
and wait the extender to reboot to its factory default settings.
Log in to the extender's web management page, and go to
Option Two:
Settings > System Tools > Backup & Restore
Restore.
Ethernet Port: One 10/100Mbps RJ45 Ethernet port is used to connect an

Ethernet-enabled device to a Wi-Fi network, such as Internet TV, DVR,
Gaming console and so on. Please note that this port cannot be connected
to a router.
If your Wireless router supports WPS
page, click Factory
For safety, we suggest you plug the extender right way up as the picture shows
below.
Right way up
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