Computer Networking Starter · free course

Free course · Lesson 2 of 5

Wi-Fi Setup for Homes and Offices

In this lesson you will

  • Choose good Wi-Fi settings
  • Secure a wireless network

Setting up Wi-Fi correctly the first time prevents most day-to-day connectivity complaints and keeps the network reasonably secure.

  • SSID (network name): Choose a clear, unique name so it's easy to identify among neighboring networks.
  • Router placement: Central, elevated, away from thick walls and metal objects gives the best coverage.
  • Encryption: Use WPA2 or WPA3 security (never "Open"/no password) to prevent unauthorized access.
  • Guest network: Many routers support a separate guest Wi-Fi network, keeping visitors off your main network where your other devices live.

Practical Skill: Set up (or review) a home or office router: rename the default SSID, set a strong WPA2/WPA3 password, and change the default admin password.

TemplateRouter Setup Checklist
Worksheet
=== HOME/OFFICE ROUTER SETUP CHECKLIST === [ ] Change the default admin username/password      (default logins like admin/admin are widely known)[ ] Rename the Wi-Fi network (SSID) to something identifiable      but not revealing (avoid using your full name/address)[ ] Set encryption to WPA2 or WPA3 (never "Open")[ ] Set a strong Wi-Fi password (12+ characters)[ ] Enable a separate Guest network for visitors, if available[ ] Place the router centrally, elevated, away from thick walls[ ] Check for and install router firmware updates

Practice exercise

Check your router's Wi-Fi security mode, channel and admin password, and list the changes that would make it more secure.

Key takeaways

  • Use WPA3 or WPA2-AES
  • 2.4 GHz reaches further; 5 GHz is faster
  • Give visitors a guest network
In the full program Module 2: Wi-Fi Setup and Coverage See how this topic is taught in depth, with practical activities and an assessment.

Free self-study lesson — no certificate. For the full instructor-led program, see registration options.