3Com XLPCI manual Using the DOS Conﬁguration Program, Running the 3Com NIC Diagnostics Program

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4-2CHAPTER 4: CHANGING CONFIGURATION SETTINGS

Using the DOS Conﬁguration Program

The conﬁguration section of the DOS diagnostic program is used to conﬁgure the 3C900B NIC when it is installed in a PC running DOS, Windows 3.x, Windows for Workgroups, or Windows NT 3.51. To use the conﬁguration portion of the DOS diagnostic program, see the INSTRUCT.TXT ﬁle in the HELP directory on EtherDisk diskette 1.

Running the 3Com NIC Diagnostics Program

If you are running Windows 95 or Windows NT 4.0, run the 3Com NIC Diagnostics program to display and change conﬁguration settings.

The 3Com NIC Diagnostics program is automatically installed when you install the network driver.

Displaying Conﬁguration Settings

Follow these steps to run the 3Com NIC Diagnostics program to display the current conﬁguration settings for the 3C900B NIC:

1Make sure that the NIC is installed and connected to the network and the network driver is installed.

2Double-click the 3Com icon in the system tray. A warning message appears.

If the 3Com icon has been disabled and is not visible in the system tray, follow this procedure:

a Click Start in the Windows taskbar.

b Select Programs, and then select 3Com NIC Utilities. c Click 3nicdiag.

A warning message appears.

The 3Com NIC Diagnostics General screen appears, as shown in Figure 4-1.

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Contents EtherLink XL PCI 10 Mbps Network Interface Cards User Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Changing Configuration Settings Troubleshooting Network Connection Problems Page Figures Tables About this Guide Finding Speciﬁc Information in This GuideIf you are looking for Turn to Conventions Icon DescriptionConvention Description Bold-face typeInstalling Network Interface CardPreparing for Installation NIC Model Cable Connector Transceiver Network SegmentMaximum Inserting the NIC 2Installing the 3C900B NIC Connecting to the Network RJ-45 Port4Connecting to the BNC Port on the 3C900B-COMBO NIC BNC Port5Connecting to the AUI Port on the 3C900B-COMBO NIC AUI PortInterpreting the Link LED Meaning RJ-45State OffNetwork Driver WindowsWindows 95 Build Speciﬁed ﬁelds of the Identiﬁcation tab screen, enterEnter your user name and password, and then click OK Click CloseClick Yes Windows 95 OSR2 Insert EtherDisk diskette 2 in drive a and click NextClick Finish Windows 95 prompts you to reboot Conﬁrming Installation Windows NTWindows NT Click the Adapters tabClick Add 8CHAPTER 2 Installing the Network Driver Click Close Click OK in the Network Settings window Click Add AdapterNovell NetWare Client Driver Running AutoLink SoftwareNovell NetWare Server Driver NetWareSave and exit the ﬁle, and then reboot the server NetWare 4.10Multiple NICs 3c90xcfg.exe Supported Network Drivers Network Text File Name Network Driver Name Operating SystemTroubleshooting Running Diagnostic Programs3Com DOS Diagnostic Program 3Com NIC Diagnostics ProgramRunning NIC Tests Double-click the 3Com icon in the Windows system trayClick the Diagnostics tab 13Com NIC Diagnostics General ScreenClick Start Running the Echo TestOn both PCs On the responding PCOn the sending PC Close all open windows when the Echo test is ﬁnished 3Com Support Services 63Com NIC Diagnostics Support ScreenAccessing the Help System Click the Support tabRemoving NIC Software Windows 95 and Windows NTFrequently Asked Questions QuestionAnswerQuestion Answer Make sure that your IP protocol does not compute the CRC Fast IP is designed to bypass the router, particularly where Page Changing Configuration Settings Option Default Setting Available SettingsUsing the DOS Conﬁguration Program Running the 3Com NIC Diagnostics ProgramDisplaying Conﬁguration Settings Running the 3Com NIC Diagnostics Program Changing Conﬁguration Settings 33Com NIC Diagnostics Properties Screen43Com DynamicAccess Setup Screen Enabling Pace SupportPage Specifications SpeciﬁcationsCabling Requirements Twisted-Pair Cable 10BASE-T OperationCategory Use RJ-45 Connector Pin Assignments 10BASE-T SpeciﬁcationsPage Operational Settings Fifo Packet ThresholdConcurrent UDP Streams Disable Switch Packet Prioritization Option DescriptionsLow-Priority Ratio Natural Packet IntervalChanging Operational Settings Disable Receive Packet BufferingChanging Ranges and Protocols Troubleshooting Network Connection Problems Eliminating Potential Causes of ProblemsConnect a straight-through cable from the PC to the hub Troubleshooting Hubs with Crossover Cable Crossover cableOnline Technical Services Support from Your Network Supplier3Com Bulletin Board Service Access by Analog ModemWorld Wide Web Site 3ComFacts Automated Fax Service Access by Digital Modem408 654 408 727Page Index NumbersLANSRV.TXT 10BASE-TA-3 Page 3Com Corporation Limited Warranty FCC Class B Statement FCC Declaration of Conformity