WiFi Training

Lesson 1 • How Radio Waves Carry Data

Covers electromagnetic spectrum basics, frequency bands, and modulation. Establishes the physical layer understanding needed for all subsequent Wi-Fi topics.

Lesson 2 • Signal Propagation and Interference

Explains path loss, reflection, absorption, and multipath effects. Students predict coverage gaps and interference sources before performing site surveys.

Lesson 3 • Key Wireless Metrics and Units

Defines dBm, RSSI, SNR, throughput, and latency. Accurate metric interpretation is prerequisite to diagnosing performance issues in later chapters.

Lesson 4 • IEEE 802.11 Standard Generations

Traces Wi-Fi generations from 802.11b through Wi-Fi 7, highlighting speed and feature jumps. Provides context for choosing the right standard in deployments.

Lesson 1 • Wireless Controllers and Management Platforms

Introduces on-premises controllers, cloud-managed platforms, and controller-less architectures. Students understand centralised vs. distributed management trade-offs.

Lesson 2 • Power over Ethernet and Cabling

Explains PoE standards, switch port budgets, and structured cabling requirements. Proper power planning prevents AP brownouts and deployment failures.

Lesson 3 • Access Point Types and Form Factors

Compares indoor, outdoor, ceiling-mount, and wall-plate APs. Guides hardware selection decisions that directly affect coverage and capacity planning.

Lesson 4 • Client Device Capabilities

Examines how client chipsets, drivers, and spatial streams affect network performance. Matching AP capabilities to client capabilities maximises throughput.

Lesson 1 • Co-Channel and Adjacent-Channel Interference

Distinguishes CCI from ACI and quantifies their impact on throughput. Students apply this knowledge to justify channel separation decisions.

Lesson 2 • Automatic Channel Assignment

Explains how controllers and APs auto-select channels using background scanning. Students evaluate when automation improves or degrades channel plans.

Lesson 3 • Channel Width Trade-offs

Analyses throughput gains vs. interference risk when widening channels. Students select appropriate channel widths for high-density and low-density scenarios.

Lesson 4 • Dynamic Frequency Selection

Covers DFS channels, radar detection requirements, and channel availability timers. Using DFS channels expands usable spectrum in dense deployments.

Lesson 1 • Types of Site Surveys

Distinguishes passive, active, and predictive surveys and their appropriate use cases. Selecting the right survey type ensures accurate data collection.

Lesson 2 • Writing a Professional Survey Report

Structures findings, recommendations, and AP placement diagrams into a client-ready report. Clear reporting translates technical data into actionable decisions.

Lesson 3 • Survey Tools and Software

Introduces spectrum analysers, survey software, and mobile apps used in professional surveys. Tool proficiency directly affects data quality and survey efficiency.

Lesson 4 • Conducting a Walkthrough Survey

Covers grid-based walking paths, data collection intervals, and AP placement marking. Systematic walkthrough technique produces consistent, repeatable results.

Lesson 1 • Initial AP Provisioning and Onboarding

Walks through factory reset, firmware update, controller adoption, and profile assignment. Consistent provisioning procedures reduce configuration errors at scale.

Lesson 2 • SSID Design and VLAN Segmentation

Covers SSID naming, broadcast suppression, and VLAN-to-SSID mapping. Proper segmentation isolates traffic types and enforces network access policies.

Lesson 3 • Roaming Protocols and Fast Transition

Covers 802.11r fast BSS transition, 802.11k neighbour reports, and 802.11v BSS transition management. Proper roaming config eliminates sticky-client problems.

Lesson 4 • Quality of Service Configuration

Maps WMM access categories to traffic types and configures DSCP markings. QoS configuration ensures voice and video traffic receive priority treatment.

Lesson 1 • Enterprise Authentication with 802.1X

Configures RADIUS servers, EAP methods, and supplicant settings for enterprise Wi-Fi. 802.1X eliminates shared-password risks in organisational deployments.

Lesson 2 • Rogue AP Detection and Containment

Uses WIDS/WIPS features to detect and contain unauthorised APs. Automated containment prevents rogue devices from serving clients on the network.

Lesson 3 • Encryption Standards: WEP to WPA3

Traces encryption evolution from WEP through WPA3-SAE and OWE. Students disable legacy protocols and enforce modern encryption on all SSIDs.

Lesson 4 • Wireless Threat Landscape

Catalogues eavesdropping, evil twin, deauthentication, and rogue AP attacks. Threat awareness drives the security control choices covered in subsequent sections.

Lesson 1 • Fixing Roaming and Sticky-Client Issues

Diagnoses clients that fail to roam by analysing association logs and RSSI thresholds. Correcting sticky-client behaviour improves voice and video quality.

Lesson 2 • Resolving Interference and Congestion

Identifies non-Wi-Fi interferers and high-utilisation channels using spectrum analysis. Interference resolution restores throughput without adding hardware.

Lesson 3 • Diagnosing Coverage and RSSI Problems

Uses survey tools and client logs to locate weak-signal zones and dead spots. Coverage diagnosis leads directly to AP repositioning or power adjustments.

Lesson 4 • Throughput Testing and Benchmarking

Runs iPerf and built-in controller tests to measure actual vs. expected throughput. Benchmark data validates optimisation changes and supports capacity planning.

Lesson 1 • High-Density AP Placement Strategies

Applies directional antennas, reduced power, and cell splitting for dense environments. Placement strategy determines whether capacity targets are achievable.

Lesson 2 • Band Steering and Load Balancing

Configures band steering to push capable clients to 5 GHz and 6 GHz bands. Load balancing distributes clients evenly across APs to prevent overloading.

Lesson 3 • Scalable Controller Architecture

Designs redundant controller clusters, N+1 failover, and split-tunnel configurations. Scalable architecture ensures the network survives controller failures.

Lesson 4 • Capacity Planning Fundamentals

Calculates required APs based on client count, application bandwidth, and airtime. Capacity-first design prevents the coverage-only mistakes common in dense venues.

Lesson 5 • Design Documentation and Validation

Produces bill of materials, AP placement diagrams, and acceptance test plans. Complete documentation enables reproducible deployments and future audits.