What is the reason for dns exception?

The reasons for dns abnormality include network failure, website failure, virus, etc. The solution: 1. Check the network connection: make sure your network connection is normal, you can try to reconnect to the network or restart the router; 2. Clear the DNS cache: try to clear the DNS cache of the local computer or network device to refresh the resolution results; 3. Check the domain name configuration: Confirm whether the domain name configuration is correct, including DNS records and domain name server settings; 4. Change the DNS server: Try to change to another reliable DNS server, such as a public DNS server, etc.

There are many reasons for DNS exceptions, including but not limited to:

1. Network failure, usually caused by DNS errors;
2. Website failure, if only a certain website cannot be opened, then it may be that the server of the website is faulty, or it may be that the line of the network server is accidentally blocked;
3. It is caused by a virus, if The computer is infected with a virus, causing the DNS to be hijacked. For example, the browser homepage is tampered with, some common web pages cannot be opened, or there are pop-ups and jumps, etc.

You can try to verify the network connection, try to use a host to perform a ping test, restart the DNS server, etc. to troubleshoot.

If you encounter a DNS exception, you can try the following methods to troubleshoot and solve:

1. Check the network connection: Make sure your network connection is normal, you can try to reconnect network or restart the router.

2. Clear DNS cache: You can try clearing the DNS cache of your local computer or network device to refresh the resolution results.

3. Check domain name configuration: Confirm whether the domain name is configured correctly, including DNS records and domain name server settings.

4. Change DNS server: Try to change to another reliable DNS server, such as a public DNS server (such as Google Public DNS, OpenDNS, etc.).

If the above methods cannot solve the problem, it is recommended to contact the network service provider or system administrator for further help and support.

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