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info TP Link
Status LED blinking (WPS)
WPS connection is in progress — the extender is attempting to connect wirelessly with a host router via WPS.
? What Causes This
WP button pressed on both extender and host router within 2 minutes of each other.
ⓘ What This Means
Wait until the LED turns solid, indicating successful connection. If it remains blinking after several attempts, check if WPS is supported and properly configured on your host device or consult troubleshooting steps in FAQ.
Source: page 7 of the official manual
From the manual
This error code appears in:
TP Link Re220 Range Extender