Tenda F303 Manual page 44

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WPS
Wi-Fi Protected Setup makes it easy for home users who know little of
wireless security to establish a home network, as well as to add new
devices to an existing network without entering long passphrases or
configuring complicated settings. Simply enter a PIN code or press the
software PBC button or hardware WPS button (if any) and a secure
wireless connection is established.
Operation Instructions:
PBC: To use WPS-PBC, try two ways below:
1) Press the hardware WPS button on the router for about 1 second and
then enable WPS/PBC on the client device within 2 minutes;
2) Press the hardware WPS button on the router for about 1 second and
then enable WPS/PBC on the client device within 2 minutes;
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