Maybe it's a power light. If the power light is normal, check whether the network cable port is normal at this time. Plug the network cable into the computer. If the yellow light flashes, it means there is nothing wrong with the network cable and the router socket. If the Wlan port flashes normally, there is something wrong with the power indicator. At this point, the network connection is normal and can be ignored.

Second, how to set up dynamic IP Internet access

1. Prepare two network cables, one end of which needs to be connected to the first router. Generally speaking, any interface of the router that has been set up is connected to the lan interface, and there are four interfaces respectively. Just pick up any one, and then connect the other end to the wan interface between routers.

2. Connect one end of another network cable to any LED interface of the router and the other end to the computer.

3. Open the online page, set it on the router page, click parameters, set the wlan interface, change it to dynamic IP, and click Save.

4. To restart the second router, you need to enter192.168.2.1in the browser.

Let me introduce what happens when the router has only one light. I hope it helps.