How can I troubleshoot network connectivity issues when encountering the 'xhr failed' error?

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Grade: Education Subject: Support
How can I troubleshoot network connectivity issues when encountering the 'xhr failed' error?
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First, verify your internet connection. Then, check your firewall settings to ensure VS Code isn't blocked. If you're using a proxy, confirm the proxy settings in VS Code (File > Preferences > Settings, search for 'proxy') are correct. Try flushing your DNS cache and restarting your computer.