Step 4

Select the ADVANCED, then click on the Wi-Fi Protected Setup from the sidebar.On the new page that opens uncheck the checkbox in front of Enable.If you have a serious need to use the WPS ,you can click on "Generate New PIN" to your WiFi be secure against the PIN Calculators algorithms.But in this case, there is still the possibility of the modem getting hacked.

Click Apply Settings button to save the changes.