The error ‘ERR_NAME_NOT_RESOLVED’ typically indicates that the domain name you are trying to access cannot be resolved to an IP address, which is a common issue related to DNS (Domain Name System) resolution. Here’s a step-by-step explanation of how I would approach resolving this issue:
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Check Internet Connection: Ensure that your device is connected to the internet. A disconnected network will cause any domain name resolution to fail.
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Restart Router and Modem: Sometimes, simply restarting your router or modem can resolve temporary DNS issues. These devices can sometimes malfunction or cache outdated information.
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Clear Browser Cache: Clearing the cache and cookies in your web browser might help if the issue is specific to that browser. Cached data could interfere with proper domain resolution.
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Flush DNS Cache: On Windows, you can flush the DNS cache using the command ipconfig /flushdns. On macOS or Linux, use sudo killall –HUP mDNSResponder or sudo systemctl restart systemd–resolved.
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Check Hosts File: Inspect your system’s hosts file for any incorrect mappings. For Windows, this is located at C:\Windows\System32\drivers\etc\hosts. On macOS and Linux, it’s typically found in /etc/hosts. Look for entries that might be blocking or redirecting the domain.
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Use nslookup or ping: Tools like nslookup or ping can help diagnose DNS issues. Open a command prompt and type nslookup <domain> to see if the domain resolves correctly. Alternatively, use ping to test connectivity.
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Switch DNS Servers: Temporarily change your DNS settings to use public DNS servers like Google’s 8.8.8.8 or Cloudflare’s 1.1.1.1. This can bypass faulty local DNS configurations.
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Check Network Configuration: Ensure that your network adapter is correctly configured and that there are no IP address conflicts on the network.
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Contact Network Administrator: If you’re on a corporate or institutional network, consult with your network administrator to check for any network-wide issues affecting domain resolution.
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Test from Another Network: Try accessing the same website from another network (e.g., using mobile data) to determine if the issue is specific to your current connection.
By systematically going through these steps, you can identify and resolve the root cause of the ‘ERR_NAME_NOT_RESOLVED’ error.