The network port light is not on, the network is restricted or there is no connection, ask for a mas

1.Confirm that the adsl modem dialing is normal, because the IP automatically obtained by the network card is not cleared, so the network card cannot get the new IP address when dialing again, the new IP address will prompt 678, the operation method is: turn off the adsl modem, enter the network connection of the control panel and right-click the local connection to select disable, after 5 seconds, right-click the local connection to select enable, and then turn on the adsl modem dial-up;

2. If the first step is invalid, then in the case of turning off ADSL MODEM, still disable the local connection (network card), restart the computer, then start the local connection (NET 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" solution.

4. If the network card light is normal 1, 2 steps can not be solved, then lead the user to uninstall the network card driver, reinstall the network card driver, if the user XP system is in accordance with: knowledge number: 9973, how to set up ADSL dial-up connection method under winxp to lead the user to create a dial-up connection, if the 98 system recommends that the user install rasppoe software or ehernet300 software connection.

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 surf the Internet smoothly, it means that the router is faulty, and you should troubleshoot the router or replace it with a new one.

8.If you are an ADSL annual subscriber, if this situation occurs during use, it may be in arrears, please consult the customer service center. In some areas, China Telecom or China Unicom users, in the case of arrears, can get through, but can not access the Internet, at this time it may also be in arrears, because now the telecommunications departments in some areas are not in arrears, but stop the use of the network.

9.Some brands of modem are also prone to error 678 due to insufficient power supply

No, the icon that your computer shows "network restricted or no connection" is a LAN icon, and you don't have a LAN, so it's like this, it has nothing to do with your Internet network, don't worry about it.

The question you said is more general, can your computer still surf the Internet when you show that the network is restricted or there is no connection? If you can access the Internet normally, it is normal, regardless of him. If you can't access the Internet, you need to go to your router to set it up.

The method of entering the router refers to the router and says that it is not said. When setting it up, you'll need to enter your account and password. If that doesn't solve the problem you write out your problem with all the devices you use.

See if your IP address is obtained automatically or set manually.

If there is no DHCP server distributing IP addresses.

Then you have to set it manually.

Your IP address was originally static.

Conflicts with the current network IP address.

It is recommended to set it to automatic acquisition.

The IP address is not configured

Solution: Enable DHCP on the router.

Or configure an IP address locally

Restrictions are usually due to passwords.

Is it XP? Right-click on my computer to manage the device manager and see if there is anything in it? If not, then there is something wrong with your computer's IP address.

How did you get internet access to that computer? The manager I let you see is to see if your drivers are installed successfully. If there is no problem with the driver, it is time to solve the problem with the network.

Use the 360 tool to fix the LCP, and by the way, take a look at the local network settings.

The router is divided into two computers, and one of them can access the Internet normally, while mine can't. There are two reasons for the breakdown: the crystal head of the network cable is broken; The network card is broken (this is when you have not done the task setting before).

2. You move the computer to another computer that can access the Internet to see if you can access the Internet, or change to a new network cable to the interface of the computer that can access the Internet. If it can be solved, it means that it is a network cable problem.

3. If the above problems cannot be solved, then you can check whether your network card is broken according to the following methods: start - run - enter cmd - enter ping - enter and see if it can ping, then it means that the network card is good, if the ping is not working, it means that the network card is bad. Just change the network card.

4. If you can't solve the problem, you need to check your settings.

You see if the IP address on the second floor is automatically obtained, if not, you set it to automatically obtain.

The orange light of the network cable socket behind the host unit is solid and the green light is flashing, indicating that there is data transmission.

I remember tp-link ip, yes.

That host needs to be fixed, is there a fixed IP? Set it to a gateway if yes.

1.Press and hold the reset key of the route to reset the route.

2。Set your computer to get addresses automatically.

to configure the router.

I suspect that your host's IP is not correct.

In the IP settings there DNS fill in your gateway address and public network address.

You should have internet access through a router at home, right?

Let's take a look at your computer's DNS and IP settings first.

Restart the cat and router.

Restart the computer and reinstall it if it doesn't work. Remember to check the antivirus.

It may be that the MAC address is bound, or the IP is bound to the MAC, and DHCP is not enabled, go to the router to set it.

To log in to the router first, you must have a computer connected to the router (your neighbor's can), and enter the IE address bar with the username and password of admin

There is an IP and MAC binding option inside.,Delete the binding information in it and have a DHCP server option.,Select Enable.。

In addition, the firewall function of the router is turned on, and only the specified IP or MAC can be accessed, and the firewall of the router is also turned off.

Is there a router? If you have it, enter it in the address bar and enter a login interface, username, admin, password, admin, which has the settings of the router, and the DNS server cannot be connected, and the network adapter can update the driver.

One network cable cannot be connected to two computers.

A network cable does the router come out?

Set an IP address for your computer's network card, and there will be no more annoying prompts Right-click on the network neighbor - dot attribute - right-click local connection - dot attribute - select Internet (protocol) - dot attribute Fill in the IP address column The system will automatically fill in the dot subnet mask column Dot: OK Okay, brother, do it yourself I wish you a happy new year.

1.Uninstall and reinstall the NIC driver.

2.Configure an IP address for your network card, and if you change it again, it may conflict with the IP address in the network.

Restricted local connection? You re-establish a connection and see if it's affected by the firewall.