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info TP Link
Status LED blinks
WPS connection in progress between the extender and router.
? What Causes This
The WPS (Wi-Fi Protected Setup) button was pressed on both the host router and the extender simultaneously to establish a secure network connection.
ⓘ What This Means
Ensure the correct method of initiation has been performed: pressing the WPS buttons within two minutes.
Source: page 6 of the official manual
From the manual
This error code appears in:
TP Link TL Wa850re 300mbps Wifi Range Extender