Draytek Vigor2820 Series User Manual page 206

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.
Below shows Wireless LAN>>WPS web page.
Enable WPS
WPS Status
SSID
Authentication Mode
Configure via Push Button
Configure via Client PinCode
198
Check this box to enable WPS setting.
Display related system information for WPS.
Display the SSID1 of the router. WPS is supported by
SSID1 only.
Display current authentication mode of the router. Only
WPA2/PSK and WPA/PSK support WPS.
Click Start PBC to invoke Push-Button style WPS setup
procedure. The router will wait for WPS requests from
wireless clients about two minutes. The WPS LED on the
router will blink fast when WPS is in progress. It will
return to normal condition after two minutes. (You need
to setup WPS within two minutes)
Please input the PIN code specified in wireless client you
wish to connect, and click Start PIN button. The WLAN
LED on the router will blink fast when WPS is in
progress. It will return to normal condition after two
minutes. (You need to setup WPS within two minutes)
Vigor2820 Series User's Guide