Ralink 150N wireless adapter User Manual page 60

4. Click 'PIN' button now, and wait for few seconds to one minute. If a
wireless access point with correct PIN code is found, you'll be
connected to that access point.
5. You may have to click 'PIN' for few more times to try again. If you
still can not connect to access point by this way, please make sure the
PIN code you provided to access point is correct.
There are also some options available for WPS configuration:
WPS associate IE: Check this box to send the association request with
WPS IE during WPS setup. This is optional and you can use default value
if you don't know what will be affected.
WPS probe IE: Check this box to send the WPS probe request with WPS
IE during WPS setup. This is optional and you can use default value if
you don't know what will be affected.
Auto: When in PIN mode, wireless access point to be connected will be
selected automatically if this box is checked.
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