The router is connected to only one computer, but the light shows three

The display light of the general wireless router, 1 power supply, 1 WAN light, 1 wireless (some routers do not), 4 wired, and one for the upper and lower lights.

Router hardware recovery initialization: Use a toothpick or other slender object, press and hold the initialization button for 3 5 seconds, and you can see the front light flashing again. The initialization button is in the small hole on the front or back.

General router common login name Password: admin admin, admin empty, root root, root empty.

Many routers have a nameplate on the back.

Of the 4 wired lights, 3 of them are always on, but there is no connection, and the router initialization is invalid.

1. If the internal circuit of the router is short-circuited and does not affect the use, it is a problem with the LED circuit, and there is no problem.

If you have strong hands-on ability and DIY spirit, take it apart and take a look at the router.

Does that have anything to do with the fact that I've changed cats?

Just don't plug in the regulator power supply incorrectly.

Routers are generally 9v 1a

There are many ADSLs: 12V 1A, 12V 800MA, 18V 600MA ,..

If the interface is damaged, the light will also be on, if the password is forgotten, hit a toothpick, press and hold a small hole in the back, and restore the factory settings.

3 lights, yes, 1 is wireless, etc., one is a power light, 1 is a light that the cat connects to the router, yes.

You've got a computer connected to the socket, but there's also Wi-Fi, you know?

Are they all the three lights that correspond to the LAN port?

There are three lights that the router must turn on:

1. Power settings, wifi, Internet (earth).

2. If the light cat.

If the connection with the router is bad, the Internet light will not be on; Try to replace the network cable.

3. If the wifi light is not on, it means that the wifi is off.

4. You can enter the router to check the running status and whether the WAN port has obtained the IP.

You first check whether the crystal plug of the network cable is loose, click on the computer, then open the device manager, find the network adapter point to deactivate, and then start it, it may be fine. If not, don't be angry! Sit back, have a cup of tea, and cheer up Don't you feel hot on a hot summer day when the temperature is very high?

Devices (devices are: cats, routers, network switches, Hubble, computers, etc.) also feel hot and can't work; You may wish to refer to the following methods and adopt measures that you feel are acceptable to reduce the temperature of the working environment of the equipment. a：

Users who often surf the Internet for up to half a year should open the shell of the equipment after the power is off, and clean up the dust in the equipment b: Place the equipment in a safer place for people, open the lid of the equipment, and use air convection to strengthen the contact surface with the air for natural heat dissipation; c: Install a micro fan to the equipment to increase the convection of air and force heat dissipation; d：

If you are doing IT, I suggest that you install a heat sink on the heat-generating part of the device after disconnecting the power supply. e：

After the equipment is disconnected from the power supply, use a 3mm drill bit to drill many holes in the upper and lower parts of the equipment to strengthen the air convection flow and improve the heat dissipation conditions; f: To ventilate and dry the equipment, it is best to make an insulating bracket to support the equipment for natural heat dissipation; G: Remove the garbage fragments and IE caches generated by the Internet in time, and organize and run the C disk regularly, which can appropriately improve the running speed.

H: Let the adsl cat sync first: power off the cat and restart it.

i: The software settings are reasonable, so that 3 do not install: do not install informal software, do not install P2P software, and do not install commonly used software.

Turn off all unnecessary network connections, such as Thunderbolt BT Donkey, etc.; j: Optimize the network Personally, it is recommended to use some gadgets, such as Super Rabbit, etc. K: The computer should install at least one effective and genuine antivirus software l:

NIC problem: The NIC has the appropriate bandwidth and works stably. As long as you do a good job in the above aspects, your failures will be eliminated; Thank you for adopting my answer!

Thank you: friend!

Check whether the network cable is connected correctly, connect the external network cable to the WAN port of the router, and connect the computer to the LAN port of the router (there are four, any one can be), and connect the power to the router.

Here's how to set up your router:

Open the IE browser, enter in the IE address bar, and then press Enter, a small login page with username and password will come out, the initial username and password are admin, after entering, click "OK" to enter the router settings interface.

There is a "Quick Settings" option in the menu bar on the left side of the router settings interface (like the TP-Link Mercury brand, which is called "Setup Wizard"), click on it, and then a page will come out to let you choose the Internet access method (if China Unicom or Telecom, you will choose the PPPoE mode if you give the account password, if you give a set of IP addresses, select the static IP mode, under the static IP mode, remember to fill in the local DNS when filling in the Internet broadband information), and then click Next, Save the broadband information (account password, or fixed IP address) to the router, and then restart the router (method router menu bar at the bottom of the "System Tools" - "Restart Router"), you can surf the Internet.