The P P L1 lights are all on, and the LOS lights are always off, so why can t you surf the Internet

If it is a problem with the broadband itself, first directly connect to the broadband network cable for testing, and if it is a broadband problem, contact broadband customer service to solve it. 2) If it's a problem with the router, if it can be used originally, it can't be used for the time being, my own practice is to disconnect the power of the router and plug it in, and I'll take a look. In there is a factory reset, from the new strict according to the manual settings can be used, I don't understand, it is not recommended to set it at will (this is under the premise of the correct physical connection, sometimes the router is slow or failed to find the IP address, not that the router is broken).

If it can't be solved all the time, it is recommended to call the customer service of the router, they have **** guidance, I encounter a problem that I can't solve by myself, it is very useful to consult the advice they gave, and they will give the correct advice for your settings or operations. 3) If you turn off the wireless switch, turn it on, if it is a wireless connection with software, it is normal for the software to be difficult to use and often have problems, there is no better way, use a router. In addition, it is caused by the network card driver is not or is not suitable, and whether there is a problem with the network cable interface or network cable.

4) If it is caused by a system problem, it is recommended to restore the system or reinstall it.

Look at the PON light, link light, normal no, if you say that the lights are normal, it may be that the router is stuck or the router data is lost, and the router needs to be adjusted.

If the LOS light on the optical modem turns red or flashes, it is usually caused by the following conditions:

1] There are Q&A questions at the optical matte 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 outdoor optical fiber is broken or the optical port of the equipment in the computer room is faulty, you need to contact the staff to report the fault.

The LOS light is normal but not on.

If the PON light is on, the signal transmission between the modem and the equipment in the computer room is normal, and check whether the LAN light is normal.

Try re-entering your broadband username and password before connecting.

If you still can't connect.

Contact the operator for on-site testing.

Hope it helps.

If the LOS light does not turn on, it is in a normal state, indicating that the optical path is normal; LAN Liang indicates that the BAI network port is activated, and a DU communication connection has been established, which is also ZHI

Normal state, but no DAO data transfer yet. In this case, the Internet is still not available, which is generally the reason why users below the modem can access the Internet. Check accordingly according to different error prompts.

Most of the faults are caused by user settings, hardware connections, user accounts and passwords, and computer systems.

power, etc., is an indicator light that is connected to the power supply. Normally, it is always on.

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, etc. 2. The cold joint at the splitter box is not plugged in well or the cold joint 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.

If there is no optical signal coming, you have to contact the operator and call customer service for warranty.

The optical modem fiber signal light flashing red indicates that it is faulty.

If the optical fiber signal is normal, the LOS will not be bright.

Generally, the green light of the equipment is normal, and the red light is faulty, depending on which signal light flashes red, and then make a judgment that there is a failure.

Many of them are line failures, poor connectors, etc., or the maintenance of telecom equipment in the telecommunications room caused by the loss of signal optical cables, or loose optical fiber plugs. 】

This is a signal indication, if the LOS is on, it proves that the reception is abnormal, there are many reasons that need to be troubled and analyzed one by one, such as bad connection, loose interface, transmission path problem, optical fiber damage, equipment itself, abnormal signal at the transmitter, etc.

Many of them are caused by line failures, poor connectors, etc., or maintenance of telecommunications equipment in the room.

Optical fiber broadband converts the data to be transmitted from electrical signals to optical signals for communication. At both ends of the optical fiber, there are "optical modems" for signal conversion.

Optical fiber is the most ideal one of a variety of transmission media in broadband network, which is characterized by large transmission capacity, transmission capacity, low loss, long relay distance, etc. Optical fiber transmission uses wavelength division multiplexing, that is, the data of multiple users in the cell is fused into high-speed signals using PON technology, and then modulated to different wavelengths of optical signals are transmitted in an optical fiber.

The difference between optical fiber broadband and ADSL access mode is that ADSL is electrical signal propagation, and optical fiber broadband is optical signal propagation.

1. Hit ** to the broadband operator to ask if it is a network maintenance 2 your home external network is broken, call ** let the operator change the external network port for you 3 is the light cat is broken It is recommended to borrow a cat to try If the cat is broken, it is recommended to go directly to the electronic city to buy one much cheaper.

The LON LAN light of the fiber optic cat is always on, but the LOS light is not on, indicating that the Internet cannot be accessed normally. The reasons are as follows:

1) If it is a problem with the broadband itself, first connect directly to the broadband network cable to test whether the network is normal, and check that you can contact the broadband customer service directly if you cannot connect to the Internet, because sometimes this kind of problem will occur when the broadband system is upgraded.

2) If it is a problem with the router, it can be used originally, but it can't be used for the time being, first cut off the power of the router and plug it in, wait for about five minutes and then turn it on. Then there is the factory reset settings, and you can use it in strict accordance with the manual settings, if you don't understand, it is not recommended to set it at will (this is under the premise of the correct physical connection, sometimes it is caused by the slow or failed to find the IP address of the router, not that the router is broken), it is best to contact customer service, and customer service will send professional maintenance personnel to repair.

3) If the wireless switch is turned off, turn it on. If it is a wireless connection with software, it is normal for the software to be difficult to use and often have problems, there is no better way, it is recommended to use a router. In addition, if the network card driver is not available or inappropriate, install the network card driver first, and then check whether there is a problem with the network cable interface or network cable.

4) If it is caused by a system problem, it is recommended to restore the system or reinstall it.

If the light is off, it means that the system is not powered on or the network port is connected to a terminal device (such as a PC or set-top box). When this issue occurs, it is recommended to look at the following:

1. Check whether the line connection is correct;

2. Check whether the network cable and the copper sheet of the crystal head are corroded;

3. Check whether the bayonet is loose.

4. If there is a condition, change one and then connect it;

If the LOS light turns red, there are several situations when the LOS light turns red:

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

Error in providing broadband dialing**.

The LOS light should not be lit, and it will definitely not be able to get on the Internet.