These easy instructions will help you dlink wifi extender reset. Find the reset button on the device's bottom or back first. Press and hold the reset button with a paperclip or other such instrument for ten to fifteen seconds, or until the power light blinks or goes out, signifying that the extender has been reset to factory settings. The Wi-Fi extender will revert to its original configuration once the reset is finished, allowing you to re-configure it. If your login credentials are lost or you're having trouble connecting, this procedure can help. Following the D-Link WiFi extender reset, just follow the configuration guidelines that came with your equipment.