Network Troubleshooting for Beginners: Fix Your Internet Step-by-Step

🔗 Register for FREE Infosec Webcasts, Anti-casts & Summits – https://poweredbybhis.com 📚 Go deeper into networking with "Introduction to Networking" training on Antisyphon Training! https://learning.antisyphontraining.com/courses/introduction-to-networking-v1 Stuck with “no internet” and mystery network errors? In this final episode of the Networking Fundamentals series, Daniel Lowrie walks you through real-world network troubleshooting—from checking physical connections and bad cables to failing NICs and disabled adapters in Windows. Learn how to verify link lights, use Control Panel to manage network adapters, and run essential commands like ping, ip, ifconfig, and ipconfig to test connectivity. We cover DHCP release/renew, APIPA issues, subnet masks, DNS misconfigurations, flushing DNS cache, rebooting routers/services, and even using netsh and Winsock reset to repair broken TCP/IP stacks. By the end, you’ll have a practical checklist to diagnose and fix common home and small office network problems. chapters 00:00 - Intro - 017 Network Fundamentals - Troubleshooting 00:40 - Checking Physical Connections 03:15 - Checking Wi-Fi configuration 04:28 - Troubleshooting on Windows PC 06:06 - Windows Command Line 07:46 - Troubleshooting from Linux 10:16 - Checking IP Addresses 15:07 - APIPA Address 20:09 - Subnet Mask 21:44 - Gateway 23:02 - DNS 27:01 - winsock reset 27:47 - systemctl restart network manager 🔗 View our Pay-What-You-Can Courses https://www.antisyphontraining.com/pay-what-you-can/   🔗 View the Antisyphon Course Catalog https://www.antisyphontraining.com/course-catalog/ 🔗 View Our Live Training Course Calendar https://www.antisyphontraining.com/training-calendar/   ///Antisyphon Socials Twitter: https://twitter.com/Antisy_Training Mastodon: https://infosec.exchange/@Antisy_Training LinkedIn: https://www.linkedin.com/company/antisyphon-training Training Discord: https://discord.gg/antisyphon ///Antisyphon Training Pay What You Can: https://www.antisyphontraining.com/pay-what-you-can/ Live Training: https://www.antisyphontraining.com/training-calendar/ On Demand Training: https://www.antisyphontraining.com/on-demand-courses/ ///Antisyphon Shirts https://spearphish-general-store.myshopify.com/collections/antisyphon-training ///Educational Infosec Content Black Hills Infosec YouTube: https://www.youtube.com/blackhillsinformationsecurity Black Hills Infosec Blogs: https://www.blackhillsinfosec.com/blog/ Wild West Hackin' Fest YouTube: https://www.youtube.com/wildwesthackinfest Active Countermeasures YouTube: https://youtube.com/activecountermeasures ///Backdoors & Breaches - Incident Response Card Game Backdoors & Breaches: https://www.backdoorsandbreaches.com/ Play B&B Online: https://play.backdoorsandbreaches.com Join us at our hybrid WWHF conferences — https://wildwesthackinfest.com/ #bhis #antisyphon #infosec #CyberSecurity #training