Router issues, unable to clear DNS cache

This question is not easy to say, but it is not difficult to say. Some good point routers can control the bandwidth, and the address of the router is generally of two types1, which is the most commonly used. 2，。

The default and password are adminBy the way, you need to manually set the IP address for the incoming route, and the default gateway is the address of the route. There are many factors in your problem, it is not excluded that there is a problem with your two computers, now some software is very trawling, for example, turn off the useless startup items, it is also possible that your computer is infected with an IE virus, just fix it with Yahoo ribs, nds is bound to the best, and finally there is a problem with the network provider.

Use P2P to see if anyone restricts you with software, P2P is originally a software that restricts others, but you can also see if others use it, 360ARP can prevent others from limiting your Internet speed, which is very easy to use. Try it, if it doesn't work, just restart the router when no one is around, and it's OK.

This "can't clear DNS cache" is not a key problem, it's nothing more than that the network card can't DHCP network address, your network speed is slow, maybe the other party uses software similar to P2P terminator, you can also ** a P2P terminator, after opening, there is a detection tool inside that can be seen! Or go to the online ** anti-p2p terminator software to prevent his p2p terminator.

1. Start-Run-cmd. In the command prompt window, type: ipconfig flushdns

Clear the DNS cache manually. If the error cannot be cleared, it is possible that some optimization software was used to shut down two services of the system.

2. Start-Run, enter, and open the system service management page. Locate dhcpclient and dns

The client service can be started and set to automatic.

Method Steps:

The shortcut key brings up the "Run" marquee, enter cmd:

You can open the Command Prompt action box:

2.The command to clear the DNS cache is: ipconfig flushdns, we copy this command, right-click in the operation box and select paste (do not use shortcut keys, the command prompt will enter English letters by default, there is no recognition function of key combinations), and enter the command into the command prompt.

3.Press enter, wait for a few seconds, and a message will be displayed indicating that the DNS resolution has been successfully refreshed, which means that the DNS cache has been cleared.

In the Control Panel - > > > Management Tools > Service Start the two service components of DNS Client and DHCP Client and set them to automatic.

It may be that these two services are disabled after using some optimization software.

Right-click on my computer (Control Panel) --Services--Find DNS Client and DHCP Client Right-click the attribute to automatic, start it, and repair the network again after launching.

1. Tools: a win10 system computer, Google Chrome browser.

2. Steps.

a.Check the DNS cache saved in the win system and clear the DNS cache.

Press the shortcut key win+r to bring up the running window, and enter cmd in the window.

After clicking OK, bring up the cmd window and enter the command ipconfig displaydns in the window to view the DNS cache in the system.

As you can see the existing DNS cache, run the ipconfig flushdns command to clear the DNS cache.

Next, enter the ipconfig displaydns command again to confirm that the DNS cache is emptied. You can see that the DNS cache in the win system has been emptied.

b.Clear your browser's DNS cache and empty the cache.

Next, you can clear the cache by clicking the Clean Host Cache button on the interface.

Finally, check again and you can see that it has been emptied.

Notes:The above content mainly introduces the DNS cache of the Win system and the Chrome browser, and other browser methods may be different.

1. Windows7 Windows Build+R or click Start Menu All Programs Accessories Command Prompt.

Windows10 system directly right-click on the start menu and select Command Prompt) 2. Enter cmd

3. Enter ipconfig flushdns in the pop-up window.

Start--- right-click on the Internet Sense icon --- Internet Properties, and the Properties dialog box pops up.

Click "Delete cookies" and "Delete files" respectively and press OK This article takes IE8 as an example).

Start--- right-click on the Internet Sense icon --- Internet Properties, and the Properties dialog box pops up.

Click the "Delete" button.

Select the items you want to delete and click "Delete".

**What should I do if I can't open it? Teach you how to quickly clean DNS cache on win7 computer.

Hold down Win+R or click Start, then Run to open.

Enter cmd in the run window and click OK.

In the window that opens, type ipconfig flushdns and press enter, noting the space before .

The DNS resolution cache was successfully flushed

This method is suitable for Windows XP and above.

1. Click [Start] - [Run] - Enter in the lower left corner and press Enter to enter the service setting options, as shown in the following figure

What should I do if the DNS cache cannot be cleared?

2. After entering the [Service] item, find the two services "DHCP Client" and "DNS Client" respectively, and double-click to open it. Note: Set the Startup Type to Automatic. As shown in the figure below:

What should I do if the DNS cache cannot be cleared?

3. After starting the DHCP client and DNS client services, it is best to restart the computer. Next, just like in step 1, open Start, enter the cmd command in the runtime and press enter to enter. As shown in the figure below:

What should I do if the DNS cache cannot be cleared?

4. Enter ipconfig flushdns in the msdos window and press the enter key to confirm. As shown in the figure below:

What should I do if the DNS cache cannot be cleared?

5. After the input is completed, it will prompt "DNS resolution cache has been successfully refreshed". If the English version is used, the message "successfully flushed the DNS resolver cache" indicates that the DNS cache was cleared successfully.

The server that resolves the corresponding domain name to an IP address is the DNS server. The biggest symptom of DNS resolution failure is that there is no problem with the IP address corresponding to the accessing site, but there will be an error when accessing his domain name. That is to say, you know that the IP address of a ** can be opened directly by entering it directly on the browser, but you can not open it by entering its domain name!!

Generally speaking, when the resolution work is completed once, the resolution entry will be saved in the DNS cache list of the computer, if the DNS resolution changes at this time, because the DNS cache list information has not changed, when the computer accesses the domain name, it will still not connect to the DNS server to obtain the latest resolution information, and will be resolved according to the cache correspondence saved on its own computer. This results in DNS resolution failures. The first step of the command to clean up the cache is to enter the command line mode by "Start->Run-> Enter cmd".

Step 2: In the command line mode we can see in ipconfig?There is a parameter called flushdns, which is the command to clear the DNS cache.

Step 3: Run the ipconfig flushdns command, when the prompt "successfully flushed the DNS resolver cache" appears, it means that the cache information of the current computer has been successfully cleared.

See for details.

DNS, Domain Name System, or Domain Name Service. The Domain Name System assigns domain name addresses and IP addresses to hosts on the Internet. If you use a domain address, the system will automatically convert the domain address to an IP address.

The Domain Name Service is an Internet tool that runs the Domain Name System. The server that executes the domain name service is called a DNS server, and the DNS server is used to answer the query of the domain name service.

1. DNS is the domain name server, and its task is to determine the resolution of the domain name, such as A records, MX records, etc.

2. Any domain name has at least one DNS, usually 2. But why more than 2? Because DNS can be processed in turn, the first resolution failure can be found in the second one. In this way, as long as a DNS resolution is normal, the normal use of the domain name will not be affected.

The simplest thing we can do is to flush the DNS, which is to delete entries in the DNS resolver cache. Click "Start" "Run" Enter cmd and click "OK", type in the command prompt window: ipconfig flushdns

2. If the above does not work, start the two service components of DNS client and DHCP client in the system service.

For attacks on arp spoofing such as network scissorhands, cyber law enforcement officer, and network**, you can clear the arp cache in the network card repair operation, and you can use the arp -d command in the cmd command.

To clear the DNS cache, first enter the command prompt (start - run - cmd): first run: ipconfig displaydns this command, check the dns information that has been cached by the machine, and then enter the following command ipconfig flushdns At this time, the DNS cache information of the machine has been cleared, we can enter the command entered again to see, ipconfig displaydns

Sometimes the computer may encounter such a problem, other computers in the same network can access the Internet normally, but your own computer encounters such a message: the page cannot be found, and the DNS address of the server cannot be resolved. Obviously, this is due to a DNS error caused by the computer can not access the Internet, so how to judge the DNS error that cannot go online?

The method is very simple, you can reset the DNS, and then empty the DNS cache. 1. Set up the computer DNS When the computer encounters a DNS failure, you can try to manually set up other DNS resolution services, there are already many public DNS in China, including Alibaba Cloud DNS, DNS, Gu Hunger Song Global General DNS, etc. - Alibaba Cloud public DNS addresses (2):

and public dns address (1 chongtan): google dns address (2): and the computer to set up dns method is very simple, I have shared a lot of related tutorials for you before, the specific method is:

Right-click on the network icon in the lower right corner of your computer's desktop, then click.

Summary. Of course, you can also enter your correct DNS server address in the Internet protocol, and you can surf the Internet smoothly after entering it correctly.

Open your 360 security guard, there is a [Function Collection] in the lower right corner, and there is a [Broken Edge Imitation Network First Aid Kit] in the Function Collection, click [Broken Network First Aid Base Lead Box].

If you don't have a first aid kit in it, it means that you haven't added this function yet, or it is not displayed on the homepage, you can click the [More] button on the right to look for all the functions.

After opening the first aid kit for network disconnection, click the [Comprehensive Diagnosis] button to diagnose your network.

The diagnostic results show that there is an error in your DNS, and in a few other cases, click the [Fix Now] button to fix your network.

Once the repair is complete, you can continue surfing the web.

If the repair fails, you can try to do an LSP repair to restore your internet connection.

You can also enter your correct DNS server address in the Internet protocol, and you can surf the Internet smoothly after entering it correctly.

Enter cmd in the beginning, crypt and open it, and then type ipconfig all in it to view all the IP information of your flutter, including DNS information. Stove traces.

Then type your DNS address into your computer.

Dear, I hope the above methods can help you and wish you a happy life.