D-Link DIR-879 User Manual page 127

Section 5 - Connecting to a Wireless Network
7. The following window appears while the DIR-879 is being configured.
Wait for the configuration to complete.
8. The following window informs you that WPS on the DIR-879 has been set up
successfully.
Make a note of the security key as you may need to provide this security key
if adding an older wireless device to the network in the future.
9. Click Close to complete WPS setup.
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