ZyXEL Communications NWD6505, NWD6605 Troubleshooting, 4.1Power, Hardware Connections, and LEDs

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This chapter offers some suggestions to solve problems you might encounter. The potential problems are divided into the following categories.

The NWD Series adapter does not turn on. None of the LEDs turn on.

1Make sure the NWD Series adapter is correctly installed (refer to your Quick Start Guide and Chapter 2 on page 12).

2Restart the computer to which the NWD Series adapter is attached.

3If the problem continues, contact the vendor.

One of the LEDs does not behave as expected.

1Make sure you understand the normal behavior of the LED. See Section 2.1 on page 12.

2Check the hardware connection. See the Quick Start Guide and Chapter 2 on page 12.

3Restart the computer to which the NWD Series adapter is attached.

4If the problem continues, contact the vendor.

Contents

NWD Series Dual-BandWireless USB Adapter Quick Start Guide User’s Guide IMPORTANT READ CAREFULLY BEFORE USE KEEP THIS GUIDE FOR FUTURE REFERENCE Related Documentation Contents Overview Page Table of Contents Part I: Introduction and Configuration Part II: Part II: Troubleshooting Page Page Getting Started 1.1 Overview Access Point Infrastructure 1.1.1 Before You Begin 1.2.1.1 NWD6605 Dual-BandWireless AC1200 USB Adapter 1.2.1.2 NWD6505 Dual-BandWireless AC600 USB Adapter 1.2.2 NWD Series LED Indicator Function Tutorial 2.1 Overview 2.1.1What You Can Do in This Tutorial 2.1.2What You Need to Know WPS 2.2 Driver Installation Page Page 2.3 Network Connection 2.3.1ZyXEL Network Connection Wizard (Windows Zero Configuration) Page Page 2.3.2 Connecting to an AP using Wi-FiProtected Setup (WPS) Page Wireless LANs 3.1 Overview 3.1.1 What You Need to Know Server Client 3.2 Wireless LAN Overview 3.3Wireless LAN Security 3.3.1 WEP 3.3.1.1 Data Encryption 3.3.1.2Authentication Type 3.3.2WPA-PSKand WPA2-PSK 3.4 Wi-FiProtected Setup 3.4.1 How WPS Works 3.4.1.1 Example WPS Network Setup SECURITY INFO 3.4.2 Limitations of WPS Page Page Page Troubleshooting 4.1Power, Hardware Connections, and LEDs 4.2 Link Quality 4.3Problems Communicating with Other Computers Legal Information Certifications 注意 ZyXEL Limited Warranty Open Source Licenses Regulatory Information