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Network Troubleshooting
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Error: 'Connection refused'
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.
Error: 'Connection reset by peer'
Means the other side of the connection closed it. Check for server issues, timeouts, or if the server forcibly closed the connection.
Error: 'Out of bandwidth'
Occurs when the network is overutilized. Limit network usage, upgrade the infrastructure, or implement quality of service (QoS) rules.
Error: 'SSL handshake failed'
This may occur due to expired or invalid SSL certificates. Ensure the date and time are correct and certificates are valid.
Error: 'Host unreachable'
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.
Error: 'No route to host'
Network routing issue or host firewall blocking connections. Verify routing information and host firewall settings.
Error: 'Request timed out (ping)'
Indicates network connectivity issues or that the host is not responding. Check for network congestion or host firewall settings.
Error: 'Cannot connect to network within the time limit'
This might be caused by a slow network or misconfigured network settings. Confirm proper network settings and consider using a wired connection.
Error: 'VPN connection failed'
Caused by incorrect VPN settings or firewall blocking VPN ports. Reconfigure VPN or adjust firewall settings.
Error: 'Wi-Fi network not found'
Possible issues with Wi-Fi signal or incorrect SSID entered. Confirm the SSID and check the Wi-Fi signal strength.
Error: 'Connection aborted'
This error usually indicates a network error or bad client-server communication. Inspect logs and retry the connection.
Error: 'Firewall blocking traffic'
Misconfigured firewall rules can block traffic. Review and adjust firewall settings accordingly.
Error: 'Unable to connect to the internet'
Potential cause could be a disconnected network cable or Wi-Fi issues. Solution is to check physical connections or Wi-Fi settings.
Error: 'DNS server not responding'
DNS service could be down or incorrectly configured. Try changing DNS server settings or flushing DNS cache.
Error: 'Limited or no connectivity'
This could be due to an APIPA address assignment. Release/renew IP address or check DHCP server.
Error: 'Gateway Timeout Error'
This error indicates that a gateway or proxy has timed out. Check the network path to the server, including routers and proxies.
Error: 'Network is unreachable'
Possible cause is incorrect routing or gateway settings. Check route tables and default gateway configuration.
Error: 'Ping request could not find host'
Could be due to incorrect DNS resolution. Check DNS settings, or try pinging the IP address directly.
Error: 'The remote device or resource won't accept the connection'
This can be caused by incorrect network settings or by the remote host's firewall. Check network configuration and remote firewall settings.
Error: 'This webpage is not available'
Could be due to network connectivity issues or server-side problems. Verify connection and contact website administrator if the problem persists.
Error: 'Network adapter is not working properly'
May be due to a hardware failure or driver issue. Troubleshoot hardware, update the drivers, or replace the network adapter if necessary.
Error: 'Wi-Fi doesn't have a valid IP configuration'
Problem acquiring an IP address from DHCP server. Restart Wi-Fi, renew IP address, or check the router’s DHCP configuration.
Error: 'Network path not found'
Can be caused by a missing network device or wrong path specified. Confirm the network devices are functional and check path spelling.
Error: 'IP address conflict'
Cause is multiple devices with the same IP address. Solution is to renew the IP address or set a static IP if applicable.
Error: 'Network driver error'
Driver corruption or incompatibility can cause this issue. Update, reinstall, or rollback the network driver.
Error: 'Address already in use'
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.
Error: 'Ethernet doesn't have a valid IP configuration'
Network interface may not be obtaining an IP address. Restart the computer or router, and check DHCP settings.
Error: 'Connection timed out during SSL handshake'
This indicates an SSL/TLS handshake failure. Check for possible interference from firewalls, or issues with SSL/TLS version compatibility.
Error: 'Network cable unplugged'
This is usually a physical issue. Ensure the network cable is properly connected to both the computer and the network socket.
Error: 'Wi-Fi connection keeps dropping'
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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