Flushing your DNS cache can resolve connectivity issues by clearing out outdated or corrupted data and forcing your device to retrieve the latest DNS information. Here’s a step-by-step guide for different operating systems.

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On Windows

1. Open Command Prompt:
   • Press Win + R to open the Run dialog.
   • Type cmd and press Enter to open Command Prompt.
2. Enter the Command:
   • Type the following command and press Enter

ipconfig /flushdns

1. Confirmation:
   • You should see a message that says, “Successfully flushed the DNS Resolver Cache.”

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On macOS

1. Open Terminal:
   • Press Command + Space to open Spotlight Search.
   • Type Terminal and press Enter.
2. Enter the Command:
   • Depending on your macOS version, enter the appropriate command:
     • For macOS Yosemite and later – sudo killall -HUP mDNSResponder
     • For macOS Lion through Mavericks – sudo killall -HUP mDNSResponder
     • For earlier versions, you may need to use – sudo dscacheutil -flushcache
3. Enter Password:
   • You may be prompted to enter your password. Type it and press Enter (your password won’t be visible).
4. Confirmation:
   • You won’t receive a success message, but the command should complete without errors.

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On Linux

1. Open Terminal:
   • Use Ctrl + Alt + T to open Terminal.
2. Enter the Command:
   • Most Linux distributions do not cache DNS by default, but if you’re using systemd-resolved, you can flush DNS with: – sudo systemd-resolve –flush-caches
3. Confirmation:
   • This command completes without displaying a success message.

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On Android

1. Open Settings:
   • Go to Settings > Apps.
2. Clear Cache for Browser:
   • Find your browser in the list of apps, tap it, and select Clear Cache.
3. Restart Device:
   • Restarting your Android device also helps clear the DNS cache.

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On iOS

1. Enable Airplane Mode:
   • Swipe down (or up, depending on the device) to access Control Center.
   • Turn on Airplane Mode, wait a few seconds, and turn it off.
2. Clear Browser Cache:
   • Go to Settings > Safari.
   • Tap on Clear History and Website Data.

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By flushing the DNS cache, your device will have access to the most current DNS information, helping to resolve connectivity and loading issues.