Quick Guide to Fix Asus Router Red Light. Asus router red light typically indicates a problem or error. Common reasons for this could include issues with your internet connection, router settings, or hardware malfunctions. To troubleshoot, start by checking your internet service provider's status to ensure it's not an external problem. Then, power cycle your router by unplugging it, waiting for a minute, and plugging it back in. If the red light persists, consult the router's user manual or contact to our experts for further assistance. https://wirelessboosterax.com/how-to-fix-red-light-on-asus-router/