Edimax EW-7108PCg User Manual page 65

Sometime WPS may fail, and you can click 'PBC' button few more
times to try again. When an access point is connected, you can
click 'Disconnect' to disconnect your wireless network card from a
connected access point, or select another WPS-enabled wireless
access point, then click 'Connect' to establish connection to
selected access point, if there are more than one WPS-enabled
access point found. You can also click 'Rotate' button, and next
access point on the list will be selected to establish connection.
If you want to delete a found access point from the list, select it and
click 'Delete' button.
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