My computer can t get online, ping is fine, the port is normal

There is no DNS server set, so there is a situation that the web page cannot be opened in IE.

According to your local network situation, fill in the corresponding DNS address in the IP address field.

Question added: DNS seems to be fine... I don't think the DNS needs to be filled in. Ping is no problem.

99% of this problem is caused by not setting up DNS properly. In the past, several of us shared the router to surf the Internet, and it was no problem to fill in the DNS.

I don't know if you use the cat directly to access the Internet or route to the Internet,If you use the route to access the Internet, I think it should be the broadband account password in your router that is set wrong,If it's a cat, you use the automatic IP address to see,And you log in to QQ Some poisoning can be on QQ but can't go online。

Summary. If you want to change routers, you can. In addition, at present, you don't change routers, you can connect a router on an interface of a good router, and then connect a router on a string.

The laptop is plugged in but can't connect to the Internet, the connection is fine, and the ping can be pinged but it just can't access the Internet.

Hello, happy to answer this question for you, can you take a look at the current IP you get?

Then ping it in the DOS interface.

How to get an IP

How to get an IP

Window key r enter cmd enter.

Enter IPCONFIG and press Enter on the DOS page.

There is another way, you can double-click QQ on the computer to see if you can log in to the mold bucket blind, such as Dankong Guo QQ can log in, that proves that this is a problem with the DNS of your computer, you need to manually configure a DNS.

QQ can't be boarded either.

Then your laptop is currently connected to a wired network.

Do you ban the network card of the wired network, and then use wifi to see if you can log in?

The right sun holds the lower key, and the tong corner finds the net, then the light Qingluo and the right button share the center. After entering click Change Adapter, then find your physical network OK right click to disable, then find this network card of WLAN, you turn it on.

The wifi is working normally, and I can use the wired network by changing a network cable interface.

Oh, that's the one you have on top of that socket there's a problem.

Well, it's very clear that there is a problem with one of the network ports of your router.

Ok thanks.

If you want to change routers, you can also do a few. In addition, at present, you don't change the router, on an interface of a good spring or a router, and then connect a router can be connected.

This method can only expand multiple network ports.

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Why does the server ping but not connecting?

First of all, you must know which port of the server you want to connect to, if you want to open ** generally use port 80, and connect to remote desktop with port 3389. Being able to ping can only indicate that the server's network is running normally, but it is not certain that the port to be accessed must be accessible or enabled. Here's how to check it:

1) The IP port of the telnet server to see if the server port can be accessed, (2) Check whether the service port on the server is in the listening state, (3) Check whether the server firewall settings block this service port, (4) Check whether the ISP or IDC provider you are using the Internet has restricted the ports you want to access.

Found elsewhere, I hope it will be helpful to you.

Clean up the network cables of the switches, remove those that are not used, pay attention to the short circuit of the network cables, and do not form a circular network between the switches.

I'm interested in this question, I need your network topology diagram, I don't need to draw it, just add other how to connect.

The general idea is as follows:

1. Because after restarting, the faulty computer is replaced, and this result is not quite in line with the principle of the replacement method. Therefore, it is judged to be a specific accidental perception or a superficial phenomenon, rather than a real phenomenon.

2. Filter the known conditions and find that telnet is not connected and ping. At the same time, the number of cons can be adjusted, for example, the default number of general switches is 2. The release of telnet can also be set, so the preliminary judgment is that the x-side is limited.

If Computer A has the following settings, you need to modify or delete the original IP security policy:

1. Click Start Control Panel Management Tools Local Security Policy to open Local Security Settings, right-click the IP Security Policy on the left side of the dialog box, and execute the Create IP Security Policy command. (Some simple clicks on next and things like the process are omitted and not written).

2. In the "Default Response Rule Authentication Method" dialog box that appears, we select the option "This string is used to protect the key exchange (pre-shared key)", and then type a string arbitrarily in the text box below. (e.g., "No ping").

3. After completing the creation of the IP security policy, click the "Add" button in the "IP Filter List" window, the "IP Filter Wizard" window will pop up, we click "Next", and the "IP Communication Source" page will pop up, and set the "Source Address" to "My IP Address" in the page; The "Destination Address" is "Any IP Address", and a computer with any IP address cannot ping your machine.

If you can't ping it, it means that your network card is broken