Why does the router have a red light? A must-read for newbies: How to solve the router's optical signal light flashing red

php editor Xigua will give you the answer: When we use the router, we often encounter the red light on the router. What is going on? The most common situation is that the router's optical signal light flashes red. This situation is usually caused by a malfunction of the router or a problem with the network connection. To help newbies solve this problem, we will introduce you some solutions in this article. Let’s find out together!

Many users find that the optical signal light of their "router" is "flashing red" and their computers and mobile phones cannot connect to the Internet. They want to solve the problem but don't know what the cause is. This article will talk about "Router Flashing" Red light” causes and solutions.

Before discussing the causes and solutions, I would like to correct a user's misunderstanding. In home networks, devices that can emit red light are called "optical cats." In order to expand their TV box services, major network operators have integrated routing functions into optical cats. Therefore, the correct statement is that the optical modem emits red light, not the router. Now let's look at the solution.

1. Broadband arrears

Under normal circumstances, network operators will install optical fiber lines into the community. Then connect the line to the optical cat in the user's room through equipment such as a splitter. As long as the broadband is not in arrears, the light on the optical cat will display yellow-green, which also means that the "optical signal" is transmitted normally.

When the user's broadband is in arrears, the system will automatically disconnect the network, and the optical splitter equipment in the community will interrupt the transmission of optical signals. If the optical cat cannot receive the optical signal, it will alarm, so it will issue a red Light.

When encountering this situation, do not rush to check the lines and equipment. You should first call the network operator to determine whether the broadband is in arrears. If it is caused by arrears, it will return to normal after payment.

2. Line failure

Careful friends will find that when the employees assigned by the network operator come to install the light When using a cat, a light meter will be used to test whether the optical fiber is smooth. As mentioned earlier, if the optical splitter interrupts the transmission of optical signals, the optical cat will emit red light. In the same way, when there is a problem with the optical fiber line, the optical cat will not be able to receive the optical signal and will also emit red light.

If you are sure that the broadband is not in arrears and encounter this situation, you can only call the customer service number and ask official maintenance personnel to come to help detect the line. If it is determined that the problem is with the line, replace it with a new optical fiber and it can be used normally.

3. Power outage

In addition to the red light caused by broadband arrears and line failures, There is another situation that is more common. The optical modems provided to users by network operators are all unique, and the device ID is stored on the network operator's server. When the usage environment of the optical modem or server changes, the connection status of the device will change.

Assume that the user's community has a power outage, causing the optical modem, optical splitter, server, etc. to be unexpectedly powered off. When the call comes again, the connection between the device and the device will fail, and the optical modem will emit a red light.

If you encounter this situation, you don’t need to call customer service. You can try to unplug the power supply of the optical modem. After waiting for 1 to 3 minutes, plug the power back in and it will return to normal.

Digression: In addition to the above three situations, it is not ruled out that there is a problem with the optical fiber interface of the optical modem, because the optical modem receives If there is no light signal, it will emit red light. However, the probability of damage to the optical cat is very low, and such situations rarely occur.

ok, this article is all over. I hope it will be helpful to my friends. After reading this article, why is the red light on the router "A must-read for newbies: How to solve the problem of the router's light signal light flashing red" "If you still don't understand it, I suggest you read it a few more times. For more relevant knowledge, please visit the learning website of this website, which will be updated every day!

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