First: Confirm which light is red. Internet (globe) red = WAN/ISP problem. System red = firmware/hardware issue. 1: the router is working, focus on modem/ISP/WAN settings. Most common fixes: proper modem→router reboot order, swap the WAN cable, and verify. My red light is on for internet, and I know ethrenet cable and modem work as I have switched them a few times with another cable and router, so problem must be router? 2020-04-08 00:23:12 - last edited 2020-04-08 00:23:17 @Tchucky Try to power cycle these two devices first. Step 1: power off the. The TP-Link router lights will be properly explained in this post, along with what they signify and when they indicate a particular issue. They indicate to us if everything is. Troubleshoot your router's red light with these steps. A red light on your router can be a source of frustration and confusion. Internet Different states of Internet light & their meanings: Solid Green: The internet connection is active but with no data flow between the router and server. Orange/Red Light On TP-Link Router (2026) - What it Means and How To Fix In this video, we'll explain what the orange or red light on your TP-Link router means and how to fix it on all models in 2026.