If the broadband is not connected, how to solve the problem that the LOS lights up red

Cat set wrong · Try to change the dialing method · There is a bridge and routing method · Choose the right dialing method It is estimated that it will not be red • I also encountered such a problem a few days ago • Our Hunan cat into the administrator set the cat is to enter the telecomadmin password in the browser ne7ja%5m should be the same password of the telecom cat ·

Hit the service**. Consult whether the local end is normal. The LOS light may be a wiring problem

The optical modem LOS indicator light is on, indicating that the optical fiber signal is abnormal or interrupted, in this case, the optical fiber is generally broken, please check whether the optical fiber plug has been plugged in, if there is no problem with the optical fiber plug, please report to the operator for maintenance, this basically does not have the possibility of repairing it yourself.

The red light of LOS is a fault of the optical fiber line, and you can't solve it, so you can find the network operator to send someone to check the line for you.

Error 678 is a line problem, just call ** to find an administrator to check the line.

What's going on with the mobile broadband cat los flashing red light, have you learned.

The LOS light of the router is on, which refers to the optical signal light alarm on the optical modem routing all-in-one machine.

The optical signal light of the optical modem indicates the working status of the optical signal on the optical modem. Its work is related to the three parts of the machine room--- optical cable--- optical modem.

The flashing of light signal lights mainly has the following aspects:

1. The light port of the computer room emits low or no light, causing the user's optical modem to work abnormally, and the optical signal light cannot receive the optical signal sent from the optical cable or the power of the optical signal is too low, which will cause the optical modem to shake hands with the computer room abnormally, and the optical signal will flash or alarm with a red light.

2. Optical cable failure (including broken optical splitter) will also cause the optical modem to not receive light or the light collection is too low, and the optical signal light will also flash or alarm with red light.

3. The failure of the optical modem itself and the partial damage of the receiver will also cause this phenomenon.

No matter which of the above three situations occurs, users basically can't solve it, and they can only report the fault.

The broadband LOS flashes red, indicating that the optical router cannot receive the optical signal, and it should not be lit normally. Faulty optical cables, including broken optical splitters, will also cause the optical modem to not receive light or the light collection is too low, and the optical signal light will also flash or red light warning.

There is no strict definition of broadband. From a general point of view, it is the bandwidth that can meet the needs of various ** transmission on the network that people can feel, so it is also a dynamic and developing concept.

On January 7, 2015, the Federal Communications Commission (FCC) made its annual broadband progress report, in which the current chairman Tom Wheeler redefined "broadband", adjusting the original downlink speed of 4Mbps to 25Mbps, and the original uplink speed of 1Mbps to 3Mbps.

Broadband, on basic electronics and electronic communications, is a method of sending many electronic messages at the same time using multiple frequencies. It describes a signal or electronic circuit that contains or is capable of simultaneously handling a wide range of frequencies.

Broadband is a relative way of description, and the larger the frequency range, that is, the higher the bandwidth, the more data can be sent.

For example, in radio communications, the bandwidth with a relatively narrow frequency range can only send Morse code, and the transmission of high-quality ** requires a large bandwidth. The broadband of a TV antenna represents the ability to receive a larger number of channels.

In terms of data transmission, the same ** line is used as the signal transmission medium, fiber optic cable is becoming more and more popular, modem can only send 64kbps of data per second, broadband ADSL and fiber optic modem can provide a higher transmission rate.

The mobile broadband LOS flashes a red light, and the situation is not good, because if it flashes, it means that the optical router cannot receive the optical signal (normally, it should not be lit).

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

2. The indoor pigtail connection optical cat connector is loose, and the connector can be restored by plugging it in;

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 optical fiber of the outdoor part is broken or the optical port of the equipment in the computer room is faulty, you need to contact the staff for fault reporting.

5. The modem itself is faulty. Partial damage to the receiver can also cause this phenomenon and should be repaired or replaced in time.

Hello, the flashing red light should be the optical modem not the router, the specific reasons are as follows:

1.Fiber outage (more likely).

2.The fiber pigtail is not inserted into the modem (check it yourself).

3.The optical modem is faulty (unlikely).

4.Faulty uplink splitter (generally this kind of fault, your neighbors around you can't use it.) ）<

As long as you are sure that the pigtail fuel carrying width behind the light cat has been connected correctly, you can only report for repair and let the master come to overhaul it.

Solution: LOS is generally a red light, if it flashes, it means that your optical router cannot receive the optical signal (normally it should not be lit), at this time, it is recommended as follows:

1. Unplug the optical fiber head, clean the optical fiber surface with a cotton ball, and then return the optical fiber.

2. It is recommended to unplug the optical fiber plug on the cat, clean the lower joint with cotton dipped in alcohol, if there is no alcohol cotton, Pi Liang can find a cigarette, and the fiber in the filter can also be dull cotton. If the red light is still flashing, it means that there is a problem with the optical signal and needs to be repaired, and the staff will overhaul the optical fiber line.

If you check that the indoor line is installed firmly, you can give feedback to the local 10010 customer service ** or feedback through the Henghu China Unicom APP "Service - Fault Report - ** Fault Report", we will arrange professional engineers to deal with it for you.

Summary. You can log in to the China Unicom APP, enter the home page-service-report the fault, and then fill it out according to the prompts and submit it, and then the staff will contact you to deal with it.

How to deal with the broadband LOS flashing red light.

You can log in to the China Unicom APP, enter the home page-service-report the fault, and then fill it out according to the prompts and submit it, and then the staff will contact you to deal with it.

If it's another company.

Log in to your respective business hall. Or dial **.

China Mobile 10086, China Unicom 10010, Telecom 1000 <><

If this is the case, you can check the reasons listed below.

First, check whether the network cable is normal or replugged. The second check whether the shutdown causes unusable Third, if the above situations cannot be used, you must contact the official customer service, and they will contact a professional after-sales engineer to solve this problem for you.