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DNS (Domain Name Servers.
The important role is to map the domain name to an IP address.
And complete the ** and receive operations of the page request, so when the DNS can not ping or timeout, it will directly cause the computer to not open the web page, and even unable to log in to various clients, and frequent DNS timeout will make the network speed.
Slow down. How to resolve DNS timeouts:
1. Make use of the "ping" command to the DNS server.
When the "request timeout" phenomenon occurs, we first need to check the line to ensure that the router, moden, and hub.
The interfaces of the switch and NIC are reliably plugged in, and the network cables are intact.
2. In the case of ensuring that the hardware lines and equipment are connected correctly, the following methods are taken to troubleshoot the faults one by one: first enter the MSDOS interface, execute the command "ping" to judge the connection between the machine and the router (gateway), when there is no timeout phenomenon, it means that the line connection is correct.
3. When one of the DNS cannot be accessed normally through the "ping" command, we can try to change the other DNS. For specific information about DNS addresses, you can consult your local telecom operator.
and get it from it. Then enter the valid DNS into the IP protocol.
as the preferred DNS. Of course, we can also use public DNS, such as telecom or so on, to try to connect.
4. Another important reason for DNS request timeout failure is packet loss caused by overload of the operator's server. For this kind of situation, we need to avoid the peak time of Internet access, and wait for BT and other operations during the trough period of Internet access.
5. In addition, an important reason why the computer cannot ping DNS normally is related to the system, it is recommended to carry out a full anti-virus treatment on the system, or install the operating system in an important way, which plays an important role in improving the access to DNS. Or using network optimization and other related programs to optimize the network is also a more effective method.
6. We can also use 360 security guards.
to improve the security of the local area network. We need to enable ARP Protection, Automatic Gateway Binding, IP Conflict Blocking, and External ARP Attack Blocking.
7. When it is uncertain that the DNS ping is unavailable or the network is unstable, we can borrow the "network disconnection first aid kit" provided by 360 security guards to diagnose the entire network, so as to find out the problem of not being able to access the Internet.
8. Finally, by clicking the "Repair Now" button to complete the network repair operation, so as to ensure the normal smooth operation of the network.
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DNS is an address resolution server, that is, a server that converts ** into an IP address, network communication uses IP addresses, DNS timeout may be due to network congestion, or DNS primary server failure, there will generally be a standby server, wait a minute.
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1. First, open the desktop of the computer, right-click on the computer, and select Properties.
2. On the computer properties interface, click on the home page of the control panel.
3. On the home page of the control panel, click on Network & Internet Options.
4. Continue to click on Network & Sharing Center to enter.
5. In the Network & Sharing Center, click on the network connection you are currently using.
6. On the network connection interface, click Properties at the bottom.
7. Click on Internet Protocol version IPv4Then click on Properties below.
8. In the protocol interface, we choose to use the following DNS server, click OK, and restart the network connection.
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If the DNS service is abnormal, the server is faulty and the server address cannot be found.
Here's how to fix it:
1. Open this software first, as shown in the figure below. If you don't have this software on your computer, you can use another computer with normal Internet access** and copy it to a removable device before switching to your current computer to install it.
2. After entering, find the first aid kit for disconnection and click to open it, as shown in the figure below.
3. After opening, you can see that there are other options to repair DNS, as shown in the figure below, at this time, click on the comprehensive diagnosis and wait for the diagnosis to be completed.
4. As shown in the following figure, when there is a problem with DNS or other items, you only need to click Fix Now to complete the repair work.
6. After completion, check whether the Internet function can be used normally, if not, the cherry blossom can be repaired again through the strong repair button on the diagnostic repair completion page, and the computer may be restarted to save the data.
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