Learning Network Troubleshooting: Practical Network Diagnostics and Solutions

Introduction

• Need to troubleshoot your network?

1. Training Network Problems

• How to determine the severity of network problems
• Fixing corporate resource issues
• Breaking down basic TCP/IP issues and causes

2. Troubleshooting Remote User Network Problems

• Common home networking issues
• Common home wireless issues
• Internet provider problems

3. Troubleshooting Corporate Wireless Network Problems

• Most common issues with corporate wireless
• Troubleshooting Wi-Fi interference

4. Troubleshooting VPN Network Problems

• What VPN types work in hotels and restaurants
• VPN works but cannot access any resources
• Common VPN error codes and how to fix them

5. Network Tools Administrators Need to Know

• Windows command-line tools
• PowerShell tools
• Linux networking tools
• Windows routing command-line tools
• Wireshark basics

6. Troubleshooting Routing, Switching, and Firewalls

• Modern network design
• How to fix data packets stuck en route
• Troubleshooting open firewall ports

Conclusion

• Next steps