Draytek Vigor2133 User Manual page 181

On the side of Vigor2133 series which served as an AP, press WPS button once on the
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front panel of the router or click Start PBC on web configuration interface. On the side
of a station with network card installed, press Start PBC button of network card.
If you want to use PIN code, you have to know the PIN code specified in wireless client.
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Then provide the PIN code of the wireless client you wish to connect to the vigor router.
For WPS is supported in WPA-PSK or WPA2-PSK mode, if you do not choose such mode in
Wireless LAN>>Security, you will see the following message box.
Please click OK and go back Wireless LAN>>Security to choose WPA-PSK or WPA2-PSK mode
and access WPS again.
Vigor2133 Series User's Guide 169