NETGEAR CG814WG manual Basic Troubleshooting Tips

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Hardware Manual for the Model CG814WG Wireless Cable Modem Gateway

Basic Troubleshooting Tips

If you have problems connected to your wireless network, try the tips below.

	Symptom	Cause	Solution
	The PC Card	The wireless	Remove and reinsert the wireless adapter.
	LINK LED is	adapter is not	Check the Windows device manager to see if the PC
	not lit.	inserted into the	Card is recognized and enabled. Reload the wireless
		slot properly or its	adapter software, if necessary.
		software is not	Try to install the wireless adapter in a different
		loaded.	Try to install the wireless adapter in a different
		loaded.	CardBus slot on your system if one is available.
			CardBus slot on your system if one is available.

	The LINK LED	The wireless	The access point may not be powered on. Or, the
	is blinking	adapter is	access point and the PC card are not configured with
	repeatedly.	attempting to	the same wireless parameters. Check the SSID and
		connect to access	WEP settings.
		point but cannot
		connect.

	I can connect to	This could be a	Check to make sure that the access point is physically
	an access point,	physical layer	connected to the Ethernet network.
	but I cannot	problem or a	Make sure that the IP addresses and the Windows
	connect to other	network	Make sure that the IP addresses and the Windows
	connect to other	network	networking parameters are all configured correctly.
	computers on	configuration	networking parameters are all configured correctly.
	computers on	configuration	Restart the cable or DSL modem, router, access point,
	the network or	problem.	Restart the cable or DSL modem, router, access point,
	the Internet.		and notebook PC.

Also, for problems with accessing network resources, the Windows software might not be installed and configured properly on your computers. Please refer to Windows documentation for instructions on these options.

C-10	Configuring Wireless Security in Windows XP

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Contents NETGEAR, Inc Trademarks Voluntary Control Council for Interference Vcci Statement Page Contents Appendix B Contents Vii Viii Contents Typographical Conventions About This ManualAudience Special Message Formats Powerful, True Firewall Chapter Hardware OverviewAbout the CG814WG Built-in Cable Modem802.11g Standards-based Wireless Networking Configurable Auto Uplink Ethernet ConnectionProtocol Support Easy Installation and ManagementUSB Port Hardware Overview What’s in the Box? Gateway’s Front PanelUSB Gateway’s Rear Panel CG814WG Rear PanelHardware Overview Chapter Preparing Your Network Preparing Your Computers for TCP/IP NetworkingConfiguring Windows 98 SE and Me for TCP/IP Networking Install or Verify Windows Networking ComponentsPreparing Your Network Enabling Dhcp Locate your Network Neighborhood iconPrimary Network Logon is set to Windows logon Selecting Windows’ Internet Access Method Verifying TCP/IP PropertiesConfiguring Windows 2000 or XP for TCP/IP Networking Dhcp Configuration of TCP/IP in Windows XP or Dhcp Configuration of TCP/IP in Windows XPPreparing Your Network TCP/IP details are presented on Support tab Dhcp Configuration of TCP/IP in Windows Verify that the Obtain an IP addressPreparing Your Network Obtain an IP address automatically is selected Verifying TCP/IP Properties for Windows XP Verifying the Readiness of Your Internet Account Are Login Protocols Used?What Is Your Configuration Information? Obtaining ISP Configuration Information from Your Computer Select the Gateway tabRestarting the Network Preparing Your Network Appendix a Troubleshooting Basic FunctionsLocal Link LEDs Not On Power LED Not OnTest LED Stays On Troubleshooting the ISP Connection Troubleshooting a TCP/IP Network Using a Ping UtilityTesting the LAN Path to Your Gateway Cable Link LED Not OnTesting the Path from Your PC to a Remote Device Erasing the Current/Restoring the Factory Configuration Troubleshooting Appendix B Glossary Internet, which are published as RFCs Request for Comment at Information, a block of data, and a checksum Glossary Observe Location and Range Guidelines Appendix C Configuring Wireless Security in Windows XPWhat You Will Need Before You Begin Two Basic Operating Modes CG814WG Default Wireless Configuration Settings Basic Installation Instructions For Windows XP Users Installing a CG814WGInstall the CG814WG Wireless Cable Modem Gateway Configure your CG814WG Verify wireless connectivity to your network Wireless Connection Indicators Interpreting the LED on the CG814WGInterpreting System Tray Icon Colors Color Condition DescriptionBasic Troubleshooting Tips Appendix D Networks, Routing, and Firewall Basics Related Publications Basic Router ConceptsIP Addresses and the Internet What is a Router?Routing Information Protocol Figure D-1 Three Main Address Classes Netmask EqualsSubnet Addressing Figure D-2 Example of Subnetting a Class B AddressTable D-1. Netmask Notation Translation Table for One Octet Single IP Address Operation Using NAT MAC Addresses and Address Resolution Protocol Figure D-3 Single IP Address Operation Using NATRelated Documents Domain Name ServerInternet Security and Firewalls IP Configuration by DhcpWhat is a Firewall? Stateful Packet Inspection Uplink Switches and Crossover CablesEthernet Cabling Cable Quality