This Network Troubleshooting with Wireshark training is designed to help participants analyze, diagnose, and resolve complex network issues using Wireshark in real-world enterprise environments. The course covers packet analysis fundamentals, capture strategies, protocol analysis, performance troubleshooting, security anomaly detection, and structured troubleshooting workflows. Participants will gain practical, hands-on skills to interpret network traffic accurately and resolve connectivity, latency, and application-level issues efficiently.

• Understand the architecture, features, and packet analysis capabilities of Wireshark for network troubleshooting.
• Install, configure, and manage Wireshark environments for real-time traffic capture and analysis.
• Capture, filter, inspect, and analyze network packets across multiple protocols and network layers.
• Identify network issues, protocol anomalies, latency problems, and security-related traffic patterns.
• Analyze packet captures, troubleshoot connectivity issues, and validate network performance.
• Build effective network analysis and troubleshooting workflows using Wireshark best practices.

 • Network administrators and engineers
 • System and infrastructure administrators
 • SOC and security analysts
 • DevOps and site reliability engineers
 • IT professionals responsible for network reliability

 • Basic understanding of networking concepts
 • Familiarity with TCP/IP fundamentals
 • Interest in network analysis and troubleshooting

 • Capturing and filtering network traffic effectively
 • Understanding packet structures and protocols
 • Analyzing TCP/IP behavior and performance issues
 • Troubleshooting DNS, DHCP, and HTTP problems
 • Identifying latency, packet loss, and retransmissions
 • Detecting security anomalies in network traffic
 • Using Wireshark statistics and analysis tools
 • Applying structured network troubleshooting methodologies

By the end of this training, participants will be able to confidently use Wireshark to troubleshoot complex network and application issues. Learners will gain strong analytical skills to diagnose performance bottlenecks, resolve connectivity problems, and support secure, reliable network operations.

Introduction to Network Troubleshooting & Wireshark
 • Role of packet analysis in troubleshooting
 • Common network problem categories
 • Wireshark overview and use cases
 • Ethical and legal considerations

Packet Capture Fundamentals
 • Packet capture concepts
 • Capture interfaces and modes
 • Capture filters vs display filters
 • Best practices for effective captures

Wireshark Interface & Navigation
 • Packet list, details, and bytes panes
 • Protocol dissection overview
 • Color rules and profiles
 • Working with capture files

Understanding Core Network Protocols
 • Ethernet and ARP analysis
 • IP addressing and fragmentation
 • ICMP messages and diagnostics
 • Practical protocol interpretation

TCP Analysis & Performance Troubleshooting
 • TCP three-way handshake
 • Retransmissions and window sizing
 • Latency and throughput analysis
 • Identifying congestion issues

UDP, DNS & DHCP Troubleshooting
 • UDP behavior and limitations
 • DNS query and response analysis
 • DHCP lease and renewal workflows
 • Diagnosing name resolution problems

Application Layer Protocol Analysis
 • HTTP and HTTPS traffic analysis
 • Application response time breakdown
 • Identifying server vs network delays
 • Common application-level issues

Wireshark Statistics & Expert Tools
 • Conversations and endpoints
 • IO graphs and flow analysis
 • Expert information messages
 • Using statistics for root cause analysis

Advanced Filtering & Custom Analysis
 • Advanced display filters
 • Building reusable filter expressions
 • Following streams and conversations
 • Isolating problematic traffic

Security & Anomaly Detection with Wireshark
 • Identifying suspicious traffic patterns
 • Detecting scanning and malformed packets
 • Recognizing common attack indicators
 • Aligning findings with security controls

Structured Troubleshooting Methodology
 • Defining the problem clearly
 • Hypothesis-driven packet analysis
 • Validating root causes
 • Documenting findings

Reporting, Documentation & Best Practices
 • Creating actionable troubleshooting reports
 • Communicating technical findings to stakeholders
 • Maintaining evidence and capture hygiene
 • Operational best practices

Network Troubleshooting with Wireshark Capstone Workshop & Best Practices
 • End-to-end troubleshooting scenario
 • Packet capture and analysis
 • Root cause identification
 • Final workshop review and best practices

• Wireshark Setup & Packet Analysis Fundamentals
• Packet Capture, Filtering & Protocol Inspection
• Network Traffic Analysis & Issue Identification
• Troubleshooting, Performance Analysis & Security Monitoring
• End-to-End Network Troubleshooting Project

Participants will be evaluated through hands-on Wireshark capture and analysis exercises, protocol troubleshooting scenarios, instructor-led reviews, and a final assessment focused on resolving real-world network issues using packet analysis.

Participants will receive course materials, slides, reference materials, exercises and access to resources for further learning.

Upon successful completion of the training, participants will receive an AcadNXT Certificate of Completion for Network Troubleshooting with Wireshark. This digital, verifiable certification validates practical packet analysis expertise, advanced troubleshooting skills, and readiness to diagnose enterprise network issues and can be shared on LinkedIn and included in professional profiles to strengthen networking and cybersecurity career credibility.