Billion BiPAC 6404VGP R3 User Manual page 47

Step 3: Enter AP's PIN into the utility and click on the "next" button.
Step 4: These are two ways to trigger AP as Enrolee role, you can choose one to do it.
 Push AP's WPS button 1 second and release it.
 In the AP's WPS configuration page, change Role to "Enrollee" and apply "Start"
button.
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