3Com WL-560 manual Diagnosing, Problems

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4 TROUBLESHOOTING

Diagnosing	If you have difficulty with the Bridge, try the solutions in the following
Problems	table.
	Table 15	Troubleshooting

	Symptom	Solution(s)

16 devices have been connected to the Bridge, either simultaneously or sequentially. After connecting another device, the new device cannot associate with the network.

The Bridge supports up to 16 specific clients (for example, computers and printers) and keeps track of them using a client list of MAC addresses. After the client limit is reached, you must clear the client list to allow a new client to associate. For example, in a hub configuration with 16 clients connected, if you disconnect a desktop computer and connect a laptop in its place, you must clear the client list to establish network association.

1Disconnect a client by unplugging its Ethernet cable from the hub.

2Use the 3Com Wireless Infrastructure Device Manager to select the Bridge and launch its Configuration Management System.

3Under System Configuration, click Ethernet Client List. The Ethernet Client List page appears. Click Clear Client List.

4Connect the new client by plugging its Ethernet cable into the hub.

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Contents 3Com 11a/b/g Wireless Workgroup Bridge User Guide 3Com Corporation Campus Drive Marlborough MA USA Contents Configuring the Bridge END User License Agreement Regulatory Information Page About this Guide Following ConventionsRelated DocumentationDocumentation documentation Product Registration Support Introduction 802.11g 802.11aPlanning ConfigurationNetwork Configuration and Planning NetworkWorkgroup Ad-Hoc Network ConfigurationsWireless Infrastructure Network ExampleBridge UnpackingBridge Wall-Mounting the Bridge Deciding Where to Place the BridgeRouting Cable Under the Cradle Securing the Locking Bar Connecting the Power ConnectingConnecting the Bridge About the Client List Connecting to a HubNetwork printers in areas that are not wired for Ethernet LED IndicatorsDetermining if you Need to ConfigureAttaching An External AntennaNetworks without a Dhcp Server Determining if you Need to Configure the BridgeTo Wireless Client Infrastructure Bridge Default SettingsUsing the 3Com Installation CD Using the 3Com Installation CDInstalling the Bridge Configuring the Bridge Device Manager Using the 3ComWireless InfrastructureUsing the 3Com Wireless Infrastructure Device Manager Click ConfigureButton Description Management UsingSystem Moving to a new configuration Clearing Applying System Configuration SettingsSystem Properties Apply Server, select Obtain an IP address automatically and clickSelect 802.11a to set the Bridge to operate with either Select Wireless Client Infrastructure to associate with anSelect Specify the Wireless LAN Service Area to allow Service AreaBeing used, click Long Wi-Fi Interoperable External and one internal antenna this settingSet the Data Preamble 40/64-bit Shared Key WEP No Security Open System128/152-bit Shared Key 104/128-bit Shared KeyAES Or DisableSecondary Radius Using the Configuration Management System About Uart Configuring Operation ModeConfiguring Network Serial Port Settings Configuring Uart SettingsReset Applying SettingsOr with the Bridge out of the cradle Under Tools, click Restore Factory DefaultsUsing Tftp Using FTP defaultUnder Tools, click Backup Wireless Workgroup Bridge Using HttpUnder Tools, click Restore Wireless Workgroup Bridge Summary Page Diagnosing ProblemsTroubleshooting Disconnecting the Bridge DisconnectingUninstalling Uninstall 3Com Wireless Infrastructure Device ManagerFirmware Upgrading BridgeProduct to Gain Service BenefitsSolve Problems Register YourPurchase Extended WarrantyProfessional Services Access SoftwareContact Us Directory of 3Com resources by region atLatin America Telephone Technical Support and Repair END User License Agreement Page Regulatory Information MANUFACTURER’S Declaration of Conformity Industry Canada IC Emissions Compliance Statement Europe EU Declaration of Conformity Bipt Indoor/Outdoor