The lights on the Internet router or cable modem aren’t just there for show. According to www.cnet.com , they convey information about the status of your Internet connection. Here’s how you can use them to troubleshoot problems.
Many users may have noticed that their router and modem have many constantly blinking lights on them but they may not know the purpose of the lights. When there is a loss of Internet connection, these lights can be used to re-establish connection. Here are a few tips to do this:
On a router
Most routers have a single light dedicated solely to the status of the Internet connection. This light is often labelled as Internet, WAN, or marked with a symbol of globe or a satellite flying around a globe. In most cases, this light needs to be lit solid (white, green or amber) or flashing to show that Internet activity is happening. But if it’s off or red in colour, then it’s time to check to make sure that the network cable that connects the router’s WAN (Internet) port (often on the back of the router) to the modem is plugged in securely and not broken in any way . If the cable is all fine, then it’s time to check your cable or DSL modem’s light.
On a modem (or a router/modem combo)
Similar to routers, most modems (both cable and digital subscriber line) have a light dedicated to the broadband connection. This light is often labelled as Online, Cable, Sync or Signal and usually has a symbol similar to the Internet light on a router. Under normal conditions, this light should be solid green (or amber). If it’s off, red or flashing constantly (it’s okay if it flashes for a short time, like less than a minute, after a reboot) then check to make sure the service cable, either the phone line (DSL) or the coaxial cable (cable Internet), is securely plugged in and not broken. If the cable is fine, then you should call the service provider (and tell them about the status of the light) because there’s nothing you can do on your own at that point to fix the problem.
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