The DNS cache, or Domain Name System cache, is an essential component of the Windows operating system. It stores records of recent connections to internet domains, helping to speed up the loading of websites. However, sometimes these records can become outdated or corrupted, leading to internet connectivity issues. In such cases, clearing the DNS cache using the ipconfig /flushdns command in the Windows Command Prompt can be useful.
When Should You Clear the DNS Cache?
- Connection Issues to Websites: If you are unable to access certain websites, even though they are otherwise available.
- After Changing DNS Settings: If you have changed your DNS server settings, clearing the cache may be necessary to apply the new settings.
- Resolving Connection Errors: If you encounter DNS errors, such as “DNS server not responding”.
How to Clear the DNS Cache?
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Opening Command Prompt:
- Click the Start button or press the Windows key.
- Type “cmd” or “Command Prompt”.
- Right-click on “Command Prompt” and choose “Run as administrator”. Administrator rights are important as the command won’t work without them.
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Using the ipconfig /flushdns Command:
- In the opened Command Prompt, type exactly: ipconfig /flushdns
- Press Enter.
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Confirmation of Cache Clearance:
- After executing the command, a message should appear: “Successfully flushed the DNS Resolver Cache” or a similar confirming message.
- This indicates that the cache has been successfully cleared.
What to Do After Clearing the DNS Cache?
- Restart Your Browser: It’s recommended to restart your web browser to ensure that the changes take effect.
- Check Your Internet Connection: Verify if the connectivity issues have been resolved.
Clearing the DNS cache is a simple and quick way to resolve some internet connectivity issues. This process is safe and can be performed anytime you suspect DNS-related problems. Since it is a temporary solution, if issues persist, further network diagnostics or consultation with an IT specialist is recommended.
