If your D-Link Wi-Fi extender is blinking a red light, it typically signals a weak or lost connection to the router. To fix this issue, start by placing the extender closer to your router to improve signal strength. Restart both the extender and router. Ensure your extender is properly configured through the D-Link setup portal. If the problem continues, reset the extender to factory ... https://dlinkapnet.net/how-to-fix-d-link-extender-blinking-red-light/