Sapido AU-4612 Range Plus User Manual page 17

3. After selection, the specific AP will establish the connection with AU-4612
meanwhile you will get a PIN code (here example is 67382316) and you
need to input this PIN code into the specific AP before initial WPS
completes. For example, the AP SSID here is GR-1222 and in its WPS
configuration page, you have to input AU-4612 PIN code into client pin
number blank and then click "Start PIN" button.
Note: The PIN function in AP should be started before AU-4612 initial WPS
status ends.
AP: GR-1222
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