 CellStream, Inc. – Telecom Consulting and Training! | 1-Day, Instructor Led, Web Based Delivery or Self Paced, Online |
Course Description:
Network Troubleshooting Fundamentals for Technicians is a hands-on technical course that teaches learners how to systematically diagnose and resolve issues across Ethernet, IP, Wi-Fi, and VoIP networks. Participants gain foundational knowledge of network operation, explore essential protocols such as ARP, VLANs, STP, TCP/UDP, OSPF, and BGP, and learn how to identify and correct issues using tools like Wireshark, command-line utilities, scanning tools, and structured troubleshooting checklists. This course emphasizes evidence-based, layered-model problem solving—equipping technicians and engineers with the skills required to find root causes, optimize performance, and confidently troubleshoot wired and wireless environments.
Target Audience
This course is ideal for:
- Network Technicians
- Network Engineers
- Technical Support Staff / Help Desk
- Field Service Representatives
- NOC Engineers
- System Administrators
- VOIP Support Personnel
- Anyone tasked with diagnosing network performance or connectivity issues
Prerequisites
Students should have:
- Basic familiarity with computer networking concepts
- Ability to use Windows, macOS, or Linux command-line tools
- Students must attend with their laptops.
- General understanding of IP addressing (helpful but not required)
No prior troubleshooting experience is necessary.
Course Outline:
Part 1: Overview and Introductions
- Class Logistics/Objectives
- Initial Troubleshooting Points
- Definition of Troubleshooting: what it is, and what it is not
Part 2: Internet Troubleshooting
- Internet Troubleshooting Tools
- Internet Troubleshooting Checklists
- Internet Troubleshooting Labs/Experiments
Part 3: Wireless LAN Troubleshooting
- Wi-Fi physical and MAC layers
- Signal analysis, interference, channel planning
- Driver and firmware issues
- AP/STA capabilities
- Packet capture & monitor mode
- WLAN Tools: Wi-Fi scanners, spectrum analyzers
- Workflow for WLAN troubleshooting
- WLAN Troubleshooting Labs/Experiments
Part 4: Troubleshooting Packet Voice (VoIP)
- SIP and RTP fundamentals
- Call setup and teardown
- Common failure examples
- Packet Voice Tools
- Packet Voice Analysis with Wireshark
- Packet Voice Troubleshooting Labs/Experiments
Conclusions, References
Course Availability:
Contact us for schedule dates and times.
View the course calendar and browse for our schedule.
Course Description, Content, Outline, and Instructional Design are Copyright ©CellStream, Inc.