How to Configure my TP-Link RE550 AC1900 via WPS_
                     How to Configure my TP-Link RE550 AC1900 via WPS?
Instructions for TP-Link RE550 AC1900 via WPS
Follow the steps below to configure your TP link RE550:
● To use the WPS method, press the WPS button on the TP Link RE550 
AC1900 extender.
● Connect the repeater to the main router after plugging it in about three feet 
away.
● Press the WPS button as soon as the AC1900 is powered on.
● Push the same button on your wireless modem or router as soon as possible.
● Signal illuminates, but do not move until they are solid. Your WiFi network has 
been configured on your extender.
● Remove the booster and place the TP-Link RE550 in an area where there is 
no stable Wi-Fi connection or network signals.
Read more 
TP-Link RE550 AC1900 Firmware Update