How can you troubleshoot a 'pi network error connection refused' issue?

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Grade: Education Subject: Support
How can you troubleshoot a 'pi network error connection refused' issue?
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First, verify the server's IP address and port number. Check your firewall settings to ensure they're not blocking the connection. Use `ping` to test basic network connectivity to the remote server. If you're using a VPN, temporarily disable it to see if it's the cause.