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Netgear WGM511 WGM511 Reference Manual - Page 45

Troubleshooting, Troubleshooting Basic Tips

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Chapter 6 Troubleshooting This chapter provides information about troubleshooting your NETGEAR Pre-N Wireless PC Card WGM511. After each problem description, instructions are given to help you diagnose and solve the problem. Also, for problems with accessing network resources, the Windows software might not be installed and configured properly on your computers. Please refer to Appendix C, "Preparing Your PCs for Network Access". Troubleshooting Basic Tips If you have problems connected to your wireless network, try the tips below. Table 6-1. Troubleshooting Tips Symptom Cause Solution The PC Card LEDs are not lit. The WGM511 is not inserted into the slot properly or the WGM511 software is not loaded. Remove and reinsert the WGM511. Check the Windows device manager to see if the PC Card is recognized and enabled. Reload the WGM511 software, if necessary. Try to install the WGM511 in a different slot on your system if one is available. The Act LED blinks and the WGM511 cannot connect to an access point. The WGM511 is attempting to connect to an access point, but cannot connect. The access point may not be powered on. Or, the access point and the PC card are not configured with the same wireless parameters. Check the SSID and WEP settings. I can connect to an access point, but I cannot connect to other computers on the network or the Internet. This could be a physical layer problem or a network configuration problem. Check to make sure that the access point is physically connected to the Ethernet network. Make sure that the IP addresses and the Windows networking parameters are all configured correctly. Restart the cable or DSL modem, router, access point, and notebook PC. Troubleshooting 6-1 December 2004

Section	Page
User Manual for the NETGEAR Pre-N Wireless PC Card WGM511	1
Chapter 1 About This Manual	9
Audience	9
Scope	9
Typographical Conventions	10
Special Message Formats	10
How to Print this Manual	10
Chapter 2 Introduction	11
About the NETGEAR Pre-N Wireless PC Card WGM511	11
Key Features and Related NETGEAR Products	11
What’s in the Box?	12
WGM511 LEDs and Interfaces	12
A Road Map for “How to Get There From Here”	13
Chapter 3 Basic Setup	17
What You Need Before You Begin	17
Verifying System Requirements	17
Observing Location and Range Guidelines	18
Two Operating Modes	18
WGM511 Default Wireless Configuration Settings	18
Basic Installation Instructions	19
For Windows 2000 Users Installing a WGM511	22
WGM511 Wireless Connection Indicators	25
Interpreting the LEDs on the WGM511	26
Interpreting System Tray Icon Colors	26
Chapter 4 NETGEAR Smart Wireless Wizard	27
Understanding the Configuration Options	27
Using Configuration Profiles	27
Connecting to an Access Point in Infrastructure Mode	28
Figure 4-1: WGM511 Pre-N Wireless PC Card connecting to a wireless access point	28
How to Configure an Infrastructure Mode Profile	29
Connecting to Another PC in Ad Hoc Mode	30
Figure 4-2: NETGEAR WGM511 Wireless PC Card in peer-to-peer mode	30
How to Configure an Ad Hoc Mode Profile	31
How to Start a Computer-to-Computer (Ad Hoc) Network	32
Figure 4-3: Ad Hoc Setting dialog box	33
Statistics Page	33
Figure 4-4: Statistics page	34
Advanced Settings Display	35
Figure 4-5: Advanced Settings display	35
Chapter 5 Wireless Security Configuration	37
Understanding the Security Options	37
Using WEP Security	37
Basic Requirements for WEP	38
WEP Security Settings Worksheet	39
How to Configure WEP Encryption Security	40
Figure 5-1: WEP settings screen	40
Using the Wireless Zero Configuration Service for WPA-PSK Advanced Security	41
Enabling Wireless Security Features	42
Identifying the Wireless Network Name (SSID) and WEP Security Settings	42
How to Configure WEP Encryption Security	43
Chapter 6 Troubleshooting	45
Troubleshooting Basic Tips	45
Frequently Asked Questions	46
Appendix A Technical Specifications	49
Appendix B Wireless Networking Basics	51
Wireless Networking Overview	51
Infrastructure Mode	51
Ad Hoc Mode (Peer-to-Peer Workgroup)	51
Network Name: Extended Service Set Identification (ESSID)	52
Wireless Channels	52
WEP Wireless Security	53
WEP Authentication	53
WEP Open System Authentication	54
Figure 6-1: 802.11 open system authentication	54
WEP Shared Key Authentication	55
Figure 6-2: 802.11 shared key authentication	55
How to Use WEP Parameters	57
WPA Wireless Security	57
How Does WPA Compare to WEP?	58
How Does WPA Compare to IEEE 802.11i?	58
What are the Key Features of WPA Security?	59
Figure 6-3: WPA Overview	60
Figure 6-4: 802.1x Authentication Sequence	62
Is WPA Perfect?	64
Product Support for WPA	65
Appendix C Preparing Your PCs for Network Access	67
Preparing Your Computers for TCP/IP Networking	67
Configuring Windows 98 and Me for TCP/IP Networking	67
Install or Verify Windows Networking Components	67
Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 98 and Me	69
Selecting Windows’ Internet Access Method	71
Verifying TCP/IP Properties	71
Configuring Windows 2000 or XP for TCP/IP Networking	72
Install or Verify Windows Networking Components	72
DHCP Configuration of TCP/IP in Windows XP or 2000	73
DHCP Configuration of TCP/IP in Windows XP	73
DHCP Configuration of TCP/IP in Windows 2000	75
Verifying TCP/IP Properties for Windows XP or 2000	77
Glossary	79
List of Glossary Terms	79