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Seven Troubleshooting Tips for Wireless N Networks

  • Article is provided courtesy of Cisco Press.
  • Date: Oct 1, 2009.

Contents

  1. #1 Confirm that You're Using New Adapters
  2. #2 Verify that Hardware is from the Same Manufacturer
  3. #3 Use WPA2 Encryption Only
  4. #4 Change Default Channel-width for High Speeds
  5. #5 Disconnect Wireless G Clients for Best N Performance
  6. #6 Use Only 40MHz-wide Channels with Strong Signals
  7. #7 Check for interference

Article Description

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#3 Use WPA2 Encryption Only

#3 Use WPA2 Encryption Only

The wireless N standard doesn't support WEP, so connections using this type of encryption will be limited to wireless G at 54Mbps, even when using N gear.

Plus, the first WPA version doesn't even provide maximum wireless performance on N networks. Therefore, you should use WPA2 (with AES) personal or enterprise encryption.

If you still have a very old adapter that supports only WEP encryption, check on the manufacturer's web site for any driver updates, and make sure that Windows is up-to-date.

If that doesn't help, you should trade it out for a new wireless card.

To change the encryption settings, log on to the router's configuration utility by typing its IP address into a browser.

The default IP and the password should be listed in the documentation, if needed. Then find the wireless settings and change the encryption type.

4. #4 Change Default Channel-width for High Speeds | Next Section Previous Section

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