What should I do if TP Link is connected to the backend computer and laptop and cannot access the In

The tp-link here refers to the router...

Fault tips commonly encountered by broadband ADSL dial-up Internet users. Broadband ADSL dial-up Internet access uses PPPoE protocol connection, transmits data through ** line, uses ADSL special modem to realize data modulation and demodulation, the meaning of error prompt 678 is: the remote computer is not responding, which means that the instruction is sent from the computer to the network card to send data outward, including the transmission of ** line, and the port of the terminal board of the central office (telecommunications office room end) handles the data transmission problems in the process of returning data to the computer.

678 errors. To put it simply, the network is not working.

this paragraph].

1. First of all, confirm that the adsl modem dial-up is normal, because the IP automatically obtained by the network card is not cleared, so the network card cannot be obtained when dialing again.

After 5 seconds, right-click on the local connection to select Enable, and then turn on ADSL modem dial-up.

2. If the first step is invalid, then with ADSL modem turned off, still disable the local connection (network card), restart the computer, and then start.

Use a local connection (network card) and then turn on ADSL modem to solve the problem;

3. If the above steps cannot be solved, check whether the NIC light is on, if the NIC light is not on, refer to the dispatch knowledge base: "The NIC light is not lit or.

often does not light up".

4. If the NIC light is normal 1 or 2 steps can not be solved, lead the user to uninstall the NIC driver and reinstall the NIC driver.

Identification number: 9973, how to set up ADSL dial-up connection under winxp method leads the user to create a dial-up connection, if 98 system recommends that the user be safe.

Install raspppoe software or ehernet300 software to connect.

5. If the above operation is invalid, contact the telecommunications department to confirm the port.

Failure of the modem is the main cause.

7.If multiple computers are using routers to access the Internet, you can try removing the router and connecting to InterNT. If you can access the Internet smoothly, it means that the router is faulty, and you should troubleshoot the router or replace it with a new one.

What is your TP-Link East? Routing? Switchboard? Hub???

678, no way.

You have set up an account and password to access the Internet, and the route has been entered???

1. Confirm that the method and input of the login management interface are correct.

2. Check and confirm that the device is connected correctly.

Connect the computer network cable to one of the router lan1 4, power on the router, check and confirm that the status of each indicator is normal.

3. Check and confirm that the computer network parameters are set correctly.

Windows 2000 XP system: Double-click the local connection "small computer" icon in the lower right corner of the computer desktop (if there is no network card icon in the lower right corner of the computer, the entry method is "Start - Control Panel - Network Connection - Double-click Local Connection"), and then configure it.

Windows 7 Vista: Click the network connection icon in the lower right corner of the desktop, click "Open Network and Sharing Center - Change Adapter Settings Manage Network Connections - Right-click Local Connections - Properties" (or click "Start Button - Control Panel - Network and Internet - Network and Sharing Center - Change Adapter Settings Manage Network Connections - Right-click Local Connections - Properties") and then configure.

TP-Link cannot access the Internet after connecting to the computer, there may be the following reasons:

The router is not set correctly, please log in to the router settings page to set the correct way to access the Internet;

The network cable interface is incorrectly plugged in. The WAN port is connected to the network cable of the cat, and the LAN port is connected to the computer network cable, please check and check;

If the modem line is not connected properly, check whether the modem line is connected to the WAN port.

If you have not opened an account, it is recommended to consult your local broadband operator to open an account.

Manually add one, you first connect to your computer to see what the IP is getting, and then connect to the route, write this IP in.

If it doesn't work, it's static.

The other way is to change the access to a different address, just one of them, on the yellow port, when the exchange is used, just set a wireless password.

First of all, make sure that your friend's side is set up, and whether there is a MAC and IP binding.

It depends, your friend should have set up a MAC and IP binding. Ask a friend to set up a binding.

You can follow what ZP271248448 said, turn off DHCP on your router, and plug the network cable from your friend into the internal network port (4 network ports together). That is, when the switch is used, set up the wireless encryption method according to your own needs.

It is estimated that it is the result of the duplication of the network segments of the primary and secondary networks, for example, if they all belong to the segments, then your network will not be connected.

Let's take a look at the status of the upper level of the network cable and TP routing.

Log in to the route with a desktop. Clone the MAC address in the network settings and restart it.

1.Plug in the network cable.

2.Automatically obtain IP addresses

1) If it is a problem with the broadband itself, first directly connect the broadband network cable to test, if it is a broadband problem, contact the 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. After there is a factory reset, it can be used from the new settings (this is under the premise that the physical mountain Luzi connection is correct, sometimes it is caused by the router finding IP address slow or failed, 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 them for advice on the way to the min, 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.

The problem description is not clear.

First of all, newly installed or borrowed TPLINK.

You need to check whether the IP is set correctly, set the correct IP (the company will specify it) or select Automatic (individual).

Whether there is a network in the original network incoming line, and the network incoming line is directly connected to the host or notebook. There is no internet to find a home (IT) or telecommunications.

Whether the network cable is good, try to change the cable, or check it with a line tester.

Whether the wifi is turned on, the routing interface to see if the wifi icon is on.

Whether the wifi password is correct, if there is no original password, reset the route, and set it again.

Secondly, it used to work, but suddenly it couldn't be used.

Check the network cable. Network incoming.

Power off and restart the route.

Check the routing power supply (if the output voltage of the power supply is incorrect, that is, the power supply is damaged) Finally, try to change the host (mobile phone), computer viruses, and accidental deletion of the driver will make your computer unable to access the Internet.

1. The IP address of the computer must be set to be obtained automatically.

2. Check whether the network cable is normal.

3. Connect the network cable to the LAN port of the router, don't connect it wrongly.

You've connected the terminal interface to the WAN port. I want a street LAN port. There is also a problem configuring the router.

LAN cannot access the Internet fault diagnosis method.

The diagnosis method for a single computer unable to access the Internet in the LAN is as follows:

Step 1: First determine if a single computer can't access the Internet or if all computers in the LAN can't access the Internet. If a single computer cannot access the Internet, in the Windows XP 2000 operating system, click Start All Programs Accessories Communication Network connection command to open the "Network Connection" window (you can also right-click on the Internet neighbor icon and select the "Properties" command), Step 2:

Next, check the status of the Local Connection. If the icon of the local connection is two small computers flashing, prompting "Connected limbs are dressed", it means that the line from the switch hub to the computer is normal, the network card can basically work normally, and the inability to access the Internet is caused by improper operating system settings or software restrictions. Use the ping command to ping the remote host to see if it can be pinged, if it can be pinged, it means that the network connection is normal, and then check the firewall settings and server settings in the computer.

Step 4: If the local connection icon in the "Network Connections" window is gray, it means that the local connection (network card) is disabled, then just double-click the local connection icon to re-enable it.

Step 5: If the local connection icon in the "Network Connections" window says "Local cable is unplugged", it means that one end of the network cable connector from the switch or hub to the user's network card is loose or there is a problem with the network cable, then check whether the network cable is in good contact, and if it is in good contact, then check the network cable.