The cat s second and fourth lights keep flashing

Wired cable cats generally have 5 lights:

The first one, the power lamp, is always on, indicating that the power supply has been correctly connected.

The second light, the downward signal light, is always on to indicate that the cat can receive the signal from the lead combustion room.

The third lamp, the uplink signal light, is always on to indicate that the cat can also send signals to the computer room.

The above 4 lights are gradual, it takes 1 5 minutes to be fully on, you need to be patient, if 1 light can't jump, you will go back to the 2nd light and jump again.

The fifth, the transmission light, flashes to indicate that the computer and the cat are connected.

1. "The connection between the optical fiber pigtail and the optical fiber coupler is disconnected, that is, there is a problem with the optical modem and the optical fiber connection, although the staff is still checking the connection when it is installed, but after a long time of use or human factors will cause the coupler to be disconnected from the pigtail.

Workaround:Try to reconnect the pigtail, don't use too much force, it is easy to cause the fiber to bend and break.

2. Because the materials that make up the optical fiber are glass and plastic, the optical fiber is very easy to be damaged and broken in the state of bending and extrusion.

Solution: The general optical fiber damage and fracture is not able to see the obvious scar, and the user himself can not repair it, it is recommended to immediately call ** to find broadband maintenance personnel, optical fiber fracture repair is very convenient, and very cheap.

Third, the probability of this kind of failure is still very small.

Solution: Find a staff member to change to a light modem.

Fourth, the remaining reason is probably the failure of the uplink splitter, which will lead to problems in the local area network, and many users in a region cannot connect to the network.

Solution: Wait for a few minutes after power-off, and then restart the modem. This kind of failure will be fixed very quickly.

Fifth, the indoor pigtail connection optical modem connector is loose.

Solution: Plug the connector in and recover.

Brother, there are several lights on the cat, which one are you talking about, power is the power indicator light, turn on the switch and it will not be on, and the cat will be broken or the switch will not be turned on if the power is not turned on. lan Your computer is turned on or connected to the route, he will flash, if it doesn't flash, it is not turned on the computer or the cable is not connected. Or your computer's network card is broken.

adsl is your connection to the external network,Flash is not connected to the external network,It may be**The cable is not plugged in or the network communication problem or your cat is over。 Internet: When your ADSL is connected, it will flash. If there is less data transmission, he will flash slowly, and when there is more data transmission, he will flash wildly.

Normally, the "light signal" light is not on, the "network e" light is on, and the "voice" light is on; Network 1 and network 2 have a flashing light with leads.

Your "light signal" flashes red, indicating that no signal is coming in, please check whether the plug is plugged in yourself? If you don't get through, you have to report for repair.

Connect the optical fiber line to the optical modem to see if you can access the Internet or make an error**, and if you can't access the Internet, it is a telecommunication line problem, and you can only call 10,000 for maintenance.

1. Optical fiber is broken (more likely).

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

3. Optical modem failure (small likelihood).

4. Failure of the uplink splitter (generally this kind of failure, your neighbors around you can't use it.) The optical signal on the modem shows a red light, indicating that there is a problem with the optical fiber. Causing the network to slow down or not be able to access the internet at all.

Solution: Check whether the optical fiber cable (usually a yellow soft wire) behind the optical fiber modem is folded or squeezed, and straighten the cable with a little force to see if the red light situation returns to normal.

If the optical signal light turns red or flashes, it means that the optical fiber signal cannot be received, which is usually caused by the following conditions:

If there is a problem with the optical interface of the optical modem, you need to replace the optical modem.

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

The bend of the optical fiber in the indoor part 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;

If the outdoor optical fiber is broken or the optical port of the equipment in the equipment room is faulty, you need to contact the staff to report the fault.

There are 3 lights that are always on, one is flashing, and the one that flashes is the light that walks the traffic. One of the ever-bright lights is the power supply, one is the first line, and the other is the network cable, which is the so-called signal line, that is, the signal line is prone to problems.

It is normal for a few lights of the cat to always flash, and to stool or under is the reason:

1. PWR: that is, the power lamp, the light is on after the cat is connected to the power supply of Zaowu;

2. ADSL, link: refers to the link light from the telecommunications bureau to the cat, and the light is on to indicate that the signal script has been synchronized and has the conditions for dial-up connection;

3. act: that is, the activation light, when the dial has been successful, the light flashes when there is data exchange between the computer and the telecommunications office, the larger the data traffic, the faster the flashing speed;

4. LAN: refers to the connection between the cat and the computer network card, the light is always on to indicate the data synchronization between the cat and the computer network card, and the flashing indicates that there is data exchange.

Hello, I am glad to serve you and give you the following answers: If the three lights of the modem are always on and one light is flashing, it may be that the modem is faulty, or it may be that there is a problem with the optical fiber connection of the modem. 1.

If the modem is faulty, you can restart the modem and check the network connection to see if it is normal. If three lights are still on and one light flashes after restarting, the modem may be faulty and you need to replace it with a new one. 2.

If there is a problem with the optical fiber connection of the optical modem, you can first disconnect the power supply of the optical modem, and then check whether the optical fiber is connected well, whether there is damage or loosening at both ends of the connector, if there is an old grinding, please reconnect it, check the network connection again, and see if it returns to normal. Personal tips: Frequently check the network connection of the modem, find the problem in time, and deal with it in time, which can effectively avoid the situation that the three lights of the modem are always on and one light is flashing.

In addition, it is necessary to pay attention to the use and maintenance of the modem, and frequently check whether the power cord and optical fiber of the modem are damaged or loose, so as to maintain the normal operation of the modem.