If the LED power light on your Linksys router is blinking it means that the firmware is corrupted. Here are some ways on Linksys router troubleshooting blinking light. Un plug the power cord and other cables from the router. Wait for at least 30 seconds and then plug in the cables. This should resolve the problem. Another way is to login to login to router using the default credentials if not changed and then checking for a firmware update. Make sure it is compatible with your device and install the firmware update.