3Com WL-560 manual Troubleshooting

Page 56

50CHAPTER 4: TROUBLESHOOTING

Table 15 Troubleshooting (continued)

After you change the IP address, after you restore a backup configuration, or after you reset the Bridge to factory defaults, the Configuration Management System stops responding and you cannot continue configuring the Bridge.

If you change the IP address and click Apply, you cannot continue to configure the device using the old IP address. Similarly, after you restore a backup configuration or reset the Bridge to factory defaults, the IP address setting may be changed.

To recover from this situation and continue configuring the Bridge:

1Close your browser.

2Return to the 3Com Wireless Infrastructure Device Manager and click Refresh.

3Select the device and click Configure to start a new configuration session and set its IP address.

The Bridge cannot associate

■

Adjust the position of the Bridge to improve

with an access point.

 

reception.

 

■

Launch the Bridge Configuration Management

 

 

System and make sure the security settings on the

 

 

Bridge match those on the access point.

 

 

The Wireless Network Tree

Verify that you are using the correct network adapter.

does not appear in the

In the device manager window, click Choose NIC.

3Com Wireless

Select the network adapter for the network you want

Infrastructure Device

to scan, and click OK.

Manager window.

 

 

 

 

The Bridge has a yellow

The Bridge is on a different subnet than the computer

exclamation point (!) next to

attempting to configure it.

it in the Wireless

To recover from this situation and continue configuring

Infrastructure Device

the Bridge:

Manager.

1

Close your browser.

 

 

2

Return to the 3Com Wireless Infrastructure Device

 

 

Manager and click Refresh.

 

3

Select the device and click Configure to start a new

 

 

configuration session.

 

4

Make sure the subnet address matches that of the

 

 

computer.

 

 

 

Two Bridges cannot

■

Adjust the positions of the Bridges to improve reception.

communicate in ad-hoc

■

To ensure correct operation in ad-hoc mode, the

mode.

 

settings on the two Bridges must match exactly.

 

 

Launch the Bridge Configuration Management System and make sure that the Wireless LAN Service Area, channel selections, Data Preamble setting, and security setting are the same on both Bridges.

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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 Conventions RelatedDocumentation FollowingDocumentation documentation Product Registration Support Introduction 802.11a 802.11gConfiguration Network Configuration and PlanningNetwork PlanningConfigurations Wireless Infrastructure NetworkExample Workgroup Ad-Hoc NetworkUnpacking BridgeBridge Deciding Where to Place the Bridge Wall-Mounting the BridgeRouting Cable Under the Cradle Securing the Locking Bar Connecting Connecting the PowerAbout the Client List Connecting to a Hub Connecting the BridgeNetwork printers in areas that are not wired for Ethernet Indicators LEDNeed to Configure Attaching AnExternal Antenna Determining if youDetermining if you Need to Configure the Bridge Networks without a Dhcp ServerBridge Default Settings To Wireless Client InfrastructureUsing the 3Com Installation CD Using the 3Com Installation CDInstalling the Bridge Configuring the Bridge Using the 3Com WirelessInfrastructure Device ManagerClick Configure Using the 3Com Wireless Infrastructure Device ManagerButton Description System UsingManagement Clearing Applying System Configuration Settings Moving to a new configurationSystem Properties Server, select Obtain an IP address automatically and click ApplySelect Wireless Client Infrastructure to associate with an Select 802.11a to set the Bridge to operate with eitherService Area Select Specify the Wireless LAN Service Area to allowExternal and one internal antenna this setting Being used, click Long Wi-Fi InteroperableSet the Data Preamble No Security Open System 40/64-bit Shared Key WEP104/128-bit Shared Key 128/152-bit Shared KeyOr Disable AESSecondary Radius Using the Configuration Management System Configuring Operation Mode About UartConfiguring Uart Settings Configuring Network Serial Port SettingsApplying Settings ResetUnder Tools, click Restore Factory Defaults Or with the Bridge out of the cradleUsing FTP default Using TftpUsing Http Under Tools, click Backup Wireless Workgroup BridgeUnder Tools, click Restore Wireless Workgroup Bridge Summary Page Problems DiagnosingTroubleshooting Disconnecting UninstallingUninstall 3Com Wireless Infrastructure Device Manager Disconnecting the BridgeUpgrading Bridge FirmwareService Benefits Solve ProblemsRegister Your Product to GainWarranty Professional ServicesAccess Software Purchase ExtendedDirectory of 3Com resources by region at Contact UsLatin 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
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