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Network Troubleshooting

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Error: 'Connection refused'

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May be due to the destination server not accepting connections on that port. Verify the service is running on the destination server and the correct port is being used.

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Error: 'Connection reset by peer'

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Means the other side of the connection closed it. Check for server issues, timeouts, or if the server forcibly closed the connection.

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Error: 'Out of bandwidth'

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Occurs when the network is overutilized. Limit network usage, upgrade the infrastructure, or implement quality of service (QoS) rules.

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Error: 'SSL handshake failed'

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This may occur due to expired or invalid SSL certificates. Ensure the date and time are correct and certificates are valid.

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Error: 'Host unreachable'

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The destination host might be down or there might be a routing issue. Verify the host is up and running and check the routing path.

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Error: 'No route to host'

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Network routing issue or host firewall blocking connections. Verify routing information and host firewall settings.

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Error: 'Request timed out (ping)'

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Indicates network connectivity issues or that the host is not responding. Check for network congestion or host firewall settings.

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Error: 'Cannot connect to network within the time limit'

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This might be caused by a slow network or misconfigured network settings. Confirm proper network settings and consider using a wired connection.

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Error: 'VPN connection failed'

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Caused by incorrect VPN settings or firewall blocking VPN ports. Reconfigure VPN or adjust firewall settings.

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Error: 'Wi-Fi network not found'

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Possible issues with Wi-Fi signal or incorrect SSID entered. Confirm the SSID and check the Wi-Fi signal strength.

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Error: 'Connection aborted'

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This error usually indicates a network error or bad client-server communication. Inspect logs and retry the connection.

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Error: 'Firewall blocking traffic'

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Misconfigured firewall rules can block traffic. Review and adjust firewall settings accordingly.

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Error: 'Unable to connect to the internet'

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Potential cause could be a disconnected network cable or Wi-Fi issues. Solution is to check physical connections or Wi-Fi settings.

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Error: 'DNS server not responding'

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DNS service could be down or incorrectly configured. Try changing DNS server settings or flushing DNS cache.

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Error: 'Limited or no connectivity'

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This could be due to an APIPA address assignment. Release/renew IP address or check DHCP server.

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Error: 'Gateway Timeout Error'

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This error indicates that a gateway or proxy has timed out. Check the network path to the server, including routers and proxies.

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Error: 'Network is unreachable'

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Possible cause is incorrect routing or gateway settings. Check route tables and default gateway configuration.

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Error: 'Ping request could not find host'

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Could be due to incorrect DNS resolution. Check DNS settings, or try pinging the IP address directly.

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Error: 'The remote device or resource won't accept the connection'

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This can be caused by incorrect network settings or by the remote host's firewall. Check network configuration and remote firewall settings.

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Error: 'This webpage is not available'

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Could be due to network connectivity issues or server-side problems. Verify connection and contact website administrator if the problem persists.

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Error: 'Network adapter is not working properly'

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May be due to a hardware failure or driver issue. Troubleshoot hardware, update the drivers, or replace the network adapter if necessary.

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Error: 'Wi-Fi doesn't have a valid IP configuration'

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Problem acquiring an IP address from DHCP server. Restart Wi-Fi, renew IP address, or check the router’s DHCP configuration.

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Error: 'Network path not found'

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Can be caused by a missing network device or wrong path specified. Confirm the network devices are functional and check path spelling.

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Error: 'IP address conflict'

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Cause is multiple devices with the same IP address. Solution is to renew the IP address or set a static IP if applicable.

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Error: 'Network driver error'

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Driver corruption or incompatibility can cause this issue. Update, reinstall, or rollback the network driver.

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Error: 'Address already in use'

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Occurs when trying to bind a socket to an IP address and port that is already in use. Make sure to use unique ports or IP addresses.

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Error: 'Ethernet doesn't have a valid IP configuration'

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Network interface may not be obtaining an IP address. Restart the computer or router, and check DHCP settings.

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Error: 'Connection timed out during SSL handshake'

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This indicates an SSL/TLS handshake failure. Check for possible interference from firewalls, or issues with SSL/TLS version compatibility.

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Error: 'Network cable unplugged'

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This is usually a physical issue. Ensure the network cable is properly connected to both the computer and the network socket.

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Error: 'Wi-Fi connection keeps dropping'

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Might be caused by interference, poor signal strength, or driver issues. Check the Wi-Fi environment and update or rollback network drivers.

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