Home and Wireless Network Tips and Troubleshooting

With more people working remotely, home networks are supporting more devices and more demanding applications than ever before. The tips below will help ensure your home network performs reliably and may help resolve common issues.

Internet Service Basics

Note: If you experience issues with your Internet connection, you will need to work with your Internet Service Provider (ISP). Performance can vary depending on your provider and connection type.

Common technologies include:

Fiber optic (e.g., Google Fiber):
Provides high speeds and strong reliability, even during peak usage.

Cable modem (e.g., Comcast, Spectrum, AT&T):
Offers high speeds, but performance may decrease when many nearby users are online at the same time.

Tips for the Best Wireless Experience

1. Secure Your Network

• Change the default name (SSID) and password for your router.
• Use a strong, unique password or passphrase.
• Enable WPA3 encryption if supported.
• If WPA3 is unavailable, use WPA2-AES (avoid mixed WPA/WPA2 mode if possible).
• Disable WPS unless it is specifically needed.

2. Verify Your Internet Speed

• Test your connection using: https://speedtest.net
• Minimum recommendations:
  • 25 Mbps download = basic use
  • 100+ Mbps download recommended for households
  • 10–20 Mbps upload recommended for video calls and remote work

3. Optimize Router Placement

• Place your router in an elevated, open area (desk or shelf).
• Avoid placing it:
  • On the floor
  • Inside closets or cabinets
  • In corners
  • Near thick materials like concrete, brick, or stone
• Keep it away from electronics like microwaves and other interference sources.

4. Understand Your WiFi Technology

Check your router’s WiFi standard:

• WiFi 5 (802.11ac): Older but still usable
• WiFi 6 / 6E (802.11ax): Better performance in busy environments
• WiFi 7 (802.11be): Highest speeds, lowest latency, best for modern workloads

Consider upgrading if your router is older than WiFi 5.

5. Use the Best WiFi Band

• 2.4 GHz: Longer range, lower speeds
• 5 GHz: Faster speeds, shorter range
• 6 GHz (WiFi 6E / 7 only):
  • Less interference
  • Higher speeds
  • Lower latency
  • Ideal for video calls, large file transfers, and dense environments

6. Stay Close to Your Router

Position yourself near your router for a stronger signal (higher signal-to-noise ratio), which improves speed and connection stability.

7. Reduce Network Congestion

• Limit streaming, gaming, or large downloads during work hours.
• Disconnect unused smart devices.
• Close applications that may be using bandwidth.

8. Check for Interference and Channels

• Most routers automatically select channels.
• For 2.4 GHz networks, use channels 1, 6, or 11 to reduce interference.
• Use tools like:
  • Network Analyzer Lite (iOS)
  • WiFi Analyzer (Android)
• Adjust your channel if neighboring networks are causing interference.

9. Keep Your Router Updated

• Regularly update router firmware.
• Check your manufacturer’s website or manual for instructions.

10. Improve Coverage (If Needed)

If your signal is weak:

• Consider a mesh WiFi system for whole-home coverage (recommended over extenders).
• Use wired (Ethernet) connections between access points when possible for best performance.
• Range extenders can help but may reduce performance.

If using multiple access points, use the same brand and product line when possible for better compatibility.

Troubleshooting Connection Issues

If You Cannot Reach a Website or Application

1. Try accessing another site (e.g., https://google.com).
   • If it works, the issue may be with the specific application.
   • Check service status: https://status.oit.duke.edu/
2. If other sites do not work:
   • Try another device.
3. If another device works:
   • Restart your computer.
   • Ensure networking is enabled.
4. If the issue persists:
   • Contact the Service Desk:
     https://oit.duke.edu/what-we-do/services/it-service-desk
   • Your ISP may be experiencing issues. Consider using a mobile hotspot as a temporary workaround.

If You Experience Slow Speeds or Performance Issues

1. Test another device:
   • If both devices are slow → restart your router.
   • If only one device is slow → close unnecessary applications.
2. Restart your computer.
3. Move closer to your router.
4. Reduce usage from other devices on your network.
5. Check your ISP’s website for outages in your area.
6. Inspect cables:
   • Ensure all connections are secure.
   • Replace cables if you have spares.
7. Test a wired connection:
   • Connect your computer directly to your modem/router using an Ethernet cable.