Common Network Issues
- No internet connection
- Slow connection speeds
- Intermittent connectivity
- DNS resolution failures
Using IP Commands
Check Local IP (Windows)
Run: ipconfig /all to see detailed network info.
Check Connectivity
Use ping to test connection to specific IPs.
Trace Route Path
Run tracert/traceroute to see packet path to destination.
Check Open Ports
Use netstat to monitor active connections.
DNS Troubleshooting
- Flush DNS cache
- Change DNS servers (Google: 8.8.8.8)
- Test with nslookup command
Router Issues
- Restart router/modem
- Check IP address assignment
- Verify firewall settings
Testing Your Connection
Use online speed test tools to measure actual performance.
When to Contact ISP
- Persistent connection issues
- No internet despite correct settings
- Repeated IP assignment failures
Conclusion
Understanding IP-based troubleshooting helps resolve most connectivity issues quickly.