PictureTel III ISA Running the Group 3 Test, Starting the Group 2 Test, Setting Up an Echo Server

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6-4CHAPTER 6: WINDOWS 3.X TROUBLESHOOTING

Starting the Group 2 Test

Follow these steps to run the Group 2 test on either the 3C509B-TPC or 3C509B-COMBO NIC:

1Connect the loopback plug to the round BNC connector on the NIC.

2Start the Configuration and Diagnostic Program,

as described in “Starting the DOS Configuration and Diagnostic Program” earlier in this chapter.

3From the Test menu, select Test Setup.

4Enable the Group 2 test. Select OK and press Enter.

5Go to the Run Tests dialog box to start the tests.

6After the test is completed:

a Exit the Configuration and Diagnostic Program. b Remove the loopback plug.

Running the Group 3 Test

The Group 3 test is the Echo Exchange Test. It tests to see if the NIC can transmit and receive data while connected to the network. If you have successfully run the Group 1 and Group 2 tests, a failure in the Group 3 test usually indicates a cabling, hub, or network problem.

CAUTION: Do not use an active network to run the Group 3 test.

To run the Group 3 test on the network, you need a second PC to serve as an echo server, and it must have a 3Com NIC installed. The echo server receives packets from and echoes packets back to the NIC being tested. The diagnostic program provided with the NIC supports the 3C509B echo server diagnostic program.

Setting Up an Echo Server

Follow these steps to set up an echo server:

1Insert the EtherDisk diskette for the echo server NIC in drive A of the echo server.

2Start the diagnostic program on the echo server.

The diagnostic program that you use is dictated by the NIC that is installed in the echo server. See Table 6-1. At the DOS prompt, enter the diagnostic program name for the associated NIC.

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Contents EtherLink III ISA Network Interface Card User Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Lifetime Limited Warranty Sweden, Finland, Norway Contents Running the AutoLink Install Program To Configure Dynamic Access SoftwareTo Not Save Installation Settings To Obtain an IP Address AutomaticallyInstalling from a Diskette NIC Test Network Test Uninstalling the NICPerforming Automated Installations ChecklistDisable Receive Packet Buffering Troubleshooting Hubs with Crossover Cable C-1Low-Priority Ratio Natural Packet Interval Update Device Driver Wizard Screen Select Device ScreenDNS Configuration Screen Save Installation Settings Screen Tables Option SettingsDiagnostic Programs Parameters for 3C509B NIC ModelsPage How to Use This Guide About this GuideIf you are looking for Turn to Icon Alerts you to ConventionsList conventions that are used throughout this guide Convention DescriptionNetwork Interface Card Installation Network Interface Card Overview3Com 3C509B EtherDisk diskettes 1 NIC Model Cable Connector Transceiver Network SegmentBefore You Begin MaximumInstalling the NIC 2Installing the 3C509B NIC Connecting to the Network Go to Link LED later in this chapter4Connecting to the BNC Port on the 3C509B-TPC NIC Go to the next section If the NIC LED indicates a problem, check the followingLink LED Describes the LED statesPage Setup for Custom Installation Selecting the Type of InstallationExpress Installation Future installations Windows 95 SetupCustom Installation Multiple NIC InstallationsWindows 95 Setup 3Com Installation WizardPerforming the Preinstallation Procedure Follow these steps to perform the preinstallation procedureClick OK Turn the power on and boot Windows Configuring the NIC in a Plug and Play PC3Com Installation Wizard starts. Go to Chapter Insert EtherDisk diskette 1 in drive a Click NextClick Finish DOS Pnpdsabl screen appears, as shown in Figure Plug and Play is disabled on the NICDisabling Plug and Play on the NIC Next step is to configure the NICConfiguring the NIC Add New Hardware Wizard starts and displays the first screenSelect No, and then click Next 8Install from Disk Screen Windows NT Setup 10I/O Range Assigned to the NIC ScreenWindows NT Setup Network screen appears Select OEM Option screen appearsCustom Installation Follow these steps to perform a Custom installationTo Accept Configuration Settings Configuring the NICTesting the NIC and the Network Connection To Modify Configuration SettingsNetwork Connection Test screen appears, as shown in Figure Follow these steps to test the NICMessage confirms that the NIC is functioning correctly Follow these steps to test the network connectionTo Install TCP/IP Installing TCP/IP Under WindowsTo Not Install TCP/IP Select the No radio button Click NextFollow these steps to obtain an IP address automatically Configuring TCP/IP Under WindowsTo Obtain an IP Address Automatically Go to Configuring DNS later in this chapterTo Specify an IP Address Manually Click Add New Gateway to add the new gateway configurationFollow these steps to obtain a DNS address automatically Configuring DNSTo Obtain a DNS Address Automatically Message confirms that the DNS connection is functioningNew server appears in the Servers list box To Specify a DNS Address ManuallyFollow these steps to specify a DNS address manually Next step is to identify your PC on the networkFollow these steps to enter field data Next step is to configure DynamicAccess softwareIdentifying Your PC on the Network Type the name of your computerConfiguring DynamicAccess Software To Not Configure DynamicAccess SoftwareTo Configure DynamicAccess Software Pace Support Setup screen appears, as shown in FigureDouble-click the 3Com Pace Config icon shown in Figure Repeating a Previous Installation To Not Save Installation SettingsTo Save Installation Settings Select the Yes radio button, and then click NextInstallation Complete screen appears, as shown in Figure Click FinishCompleting the Installation and Configuration WindowsClick Yes Windows NT Click CloseChoose a method to configure TCP/IP 19Microsoft TCP/IP Properties ScreenSelect the Specify an IP address radio button Page Under Windows ConfigurationRunning the AutoLink Install Program AutoLink RequirementsAutoLink program menu is displayed I N N UNetWare Server NLM Name Installing Other Supported Network DriversObtaining NetWare Loadable Modules Network Text File Name Network Driver Name Operating SystemSelect Configure NIC and press Enter Removing NIC SoftwareNIC software is removed from your PC NIC Configuration screen is displayed, as shown in FigureReconfiguring the NIC Select Auto Configure and press EnterChanging NIC Configuration from ISA to Eisa Follow these steps to configure the 3C509B ISA NIC for anChanging NIC Configuration from Eisa to ISA Changing Configuration Settings Option Default Setting Supported SettingsFollow these steps to change the configuration settings Page Windows 95 Windows NT Troubleshooting ChecklistResolving Hardware Conflicts in Windows 95 and Windows NT System Properties window is displayed Close all open windows and restart the PCGeneral tab of the 3Com NIC Diagnostics program appears Double-click the 3Com icon in the taskbar trayRestart the PC Setup program copies files, and the Network screen reappears Installing Multiple NICs in a Windows NT PCInstalling the First NIC 3Com EtherLink III 3C509 ISA Adapter Bus screen appearsMicrosoft TCP/IP Properties screen appears Installing Subsequent NICsSetup program displays a warning message Files are copied, and the Network screen reappearsStarting the 3Com NIC Diagnostics Program Windows 95 and Windows NT TroubleshootingDiagnostic Testing Under Windows 95 and Windows NT Messages are displayed, and you are prompted to rebootTab Description General DiagnosticsDynamicAccess ConfigurationUninstalling the NIC Running TestsReinstalling NIC Software Click Remove Click OKInstalling from a Diskette Performing Automated InstallationsInstalling from the Hard Disk Click InstallWindows Troubleshooting Diagnostic Testing Under WindowsRunning the Group 1 Tests Starting the DOS Configuration and Diagnostic ProgramIf multiple NICs are installed, each NIC is listed Select the NIC you want to test and press EnterFollow these steps to run the Group 1 tests Failure in this test usually indicates a cabling problemRunning the Group 2 Test Assembling a Loopback PlugRunning the Group 3 Test Setting Up an Echo ServerFollow these steps to set up an echo server Starting the Group 2 TestMain window of the diagnostic program is displayed Diagnostic NIC Installed Program Name Echo ServerStarting the Group 3 Test Getting Help If a Test Fails Specifications NIC SpecificationsRJ-45 Connector Pin Assignments AUI Connector Pin AssignmentsPin Function Cable Specifications TypeExamplePage Additional Ranges Tab Additional Ranges tab is shown in Figure B-1Advanced Options Tab Click AddLow-Priority Ratio Fifo Packet ThresholdConcurrent UDP Streams Natural Packet IntervalDisable Switch Packet Prioritization Disable Receive Packet BufferingThis option disables the receive packet buffer Troubleshooting Hubs with Crossover Cable Crossover CableTo make a crossover cable, connect TD+ to RD+ and TD- to RD Figure C-1Straight-Through and Crossover Cable PinoutsOnline Technical Services 3Com Bulletin Board ServiceWorld Wide Web Site Access by Digital Modem 3ComFacts Automated Fax ServiceAccess by Analog Modem 408 654To use 3ComForum 3ComForum on CompuServe Online ServiceSupport from Your Network Supplier Log on to CompuServeSupport from 3Com Regional Sales Office Telephone Number 3Com Corporation3Com Ireland Returning Products for Repair To obtain an RMA number, call or faxCountry Telephone Number Fax Number Index NumbersIndex NIC Page 3Com Corporation Limited Warranty FCC Class B Statement FCC Declaration of Conformity Page Page Page Page Page