Wi-Fi troubleshooting from the laptop

Skills you'll practise

• Read netsh wlan show interfaces: signal, band, channel, radio type and rates
• Decide whether a Wi-Fi problem is radio, authentication or IP/DHCP
• Use the WLAN report and event logs to see disconnect history
• Recognize sticky-client roaming and driver power-saving problems

Course outline

1. 1.Wi-Fi troubleshooting from the laptopVideo · 6 min
2. 2.Radio, authentication or IP?Lesson · 16 min
3. 3.History, roaming and power savingLesson · 14 min
4. 4.Bands, channels and the access points a laptop can seeLesson · 13 min
5. 5.Wi-Fi troubleshooting from the laptop: knowledge checkKnowledge check · 15 questions
6. 6.Wi-Fi troubleshooting from the laptop: practical exerciseKnowledge check · 1 question
7. 7.Wi-Fi drops for one user every afternoonScenario
8. 8.Final exam6 questions · passing it completes the course, so people who already know the material can test out

Sources it draws on

The lessons and questions are written from these references, so learners can go back to the original.

• Microsoft Learn: netsh wlan commands
• Microsoft Learn: Generate and read a wireless network report (netsh wlan show wlanreport)
• IEEE 802.11 and 802.1X overview (Wi-Fi Alliance: WPA2/WPA3-Enterprise)