The computer is not connected to the Internet, what is the reason for the LOS flashing red light on

What's going on with the LOS flashing red light on the cat?

Generally, the red light light of the modem is caused by the broken line.

There is a problem with the LOS flashing red light on the cat and the fiber optic external network.

LOS stands for optical fiber, it is best not to move the optical fiber problem, the inner core of the optical fiber is very fragile, it is easy to break, and you can call the operator for repair.

1.When the third light of the computer cat is not on, it depends on the model of your cat.

2.The general cat is Huawei, ZTE, Alcatel, their ordinary cat 1 like 5 lights, 1 general 1 is the power light, 23 is adsld synchronization, 45 is computer synchronization, of which, 124 is always on, 35 flashing is normal.

3.If the third lamp is used to synchronize with the ADLSD access network! If 1 point does not flash, it means that there is a problem with the ADSLD access network ** road or computer room you are using, and the online game requires a high multiplier, and if you can't reach it, you can't play!

It won't be a computer problem, there is more than 1 point of cat problem.

4.Look at the instructions for details, if it really doesn't work, if it is a telecom user, call 10000 for consultation.

It should be that the optical fiber is broken, and it is good to find a broadband company to replace it for you.

If the LOS light flashes red, it is preliminarily judged that the modem cannot receive the light signal or is too weak, you can follow the steps below to check further:

1. Please check whether the connection between the yellow pigtail and the optical cat is loose;

2. If there is any looseness, please reconnect it manually and restart the modem;

3. If the "LOS" light indicator continues to flash, please report the fault.

The LOS of the cat surfing the Internet lights up red, which means that the fiber optic cat cannot receive the signal, so it cannot access the Internet. The general reasons are:

1. The optical fiber fusion at the joint is unqualified or the line is damaged or broken.

2. The cold connector at the splitter box is not plugged in well or the cold connector is broken;

3. The connector at the optical box is not plugged in;

4. If the light decay signal does not meet the requirements, the optical power needs to be tested for the light decay.

In general, users with this kind of failure cannot repair it by themselves, and they need specialized personnel and fiber optic tools, so it is recommended to call the network operator to report the repair.

The LOS light indicates a loss of signal. It's your network connection Telecom Unicom carefully grasp the wide line of Bi, report for repair.

The fiber modem lights up red, and there is no optical signal transmission, indicating that the fiber is broken and the port is closed, or.

The fiber head and the fiber cat are in poor contact. You can try to check it out.

If the optical fiber is broken, knotted, etc., the optical modem connector is forked.

Next, if it still doesn't work, you can only find a network provider to deal with it.

The LOS light generally represents the optical path indicator, and the red light is that the optical path is not passable, and it may be broken or the contact is poor.

There are several situations in which the light signal of the modem lights up red:

1. There is a problem with the optical interface of the optical modem, and the optical modem needs to be replaced. (This is rare).

2. The indoor pigtail connection optical cat connector is loose. Plug the connector in and it can be restored.

3. The bending of the indoor part of the optical fiber is too large. Excessive bending of the optical fiber will affect the total reflection transmission of the optical signal in the optical fiber, as long as the optical fiber is straightened.

4. If the outdoor optical fiber is broken or the optical port of the operator's equipment room is faulty, you need to find the operator to deal with it.

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Hello, the LOS indicator of the broadband cat flashes red, which is generally a broadband line fault, if it flashes for a long time and cannot return to normal by itself, you can confirm that it is a line fault, and you can directly call the operator's customer service to report the fault.

If you can't go to the network: it means that the ADSL device is not synchronized with the central office, the reason: 1 cat is broken, 2 the line quality is not high, 3 local end problems, 4 splitters have problems.

The LOS of the fiber modem flashes a red light, which means that the fiber modem cannot receive the signal, so it cannot access the Internet. The general reasons are:

1. The optical fiber fusion at the joint is unqualified or broken;

2. The cold connector at the splitter box is not plugged in well or the cold connector is broken;

3. The connector at the optical box is not plugged in;

4. Somewhere in the line is damaged or broken, etc.

In general, users with this kind of failure cannot repair it by themselves, and they need specialized personnel and fiber optic tools, so it is recommended to call the network operator to report the repair.

LOS stands for optical fiber, and there is a problem with the external network of optical fiber. (It is best not to move the fiber problem, the inner core of the fiber is very fragile and easy to break).

Generally, the red light light of the modem is caused by the broken line.

You check whether you have not plugged in the line, if it is plugged in, you can call the operator to report for repair.

External line fault. You can't do it yourself. Generally, the fiber of the fiber optic connector is broken.

If the LOS light flashes red, it is preliminarily judged that the modem cannot receive the light signal or is too weak, you can follow the steps below to check further:

1. Please check whether the connection between the yellow pigtail and the optical cat is loose;

2. If there is any looseness, please reconnect it manually and restart the modem;

3. If the "LOS" light indicator continues to flash, please report the fault.