3Com 3CR990-FX-97 manual Accessing 3Com Support Databases, Troubleshooting Problems with the LEDs

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7Troubleshooting the NIC

Troubleshooting Problems with the LEDs

If a Link LED indicates a problem, check the following to ensure:

1Your network hub or switch and the cable connecting to your NIC comply with the speciﬁcations appropriate for your network connection.

2The hub or switch is powered on.

Accessing 3Com Support Databases

In addition to the 3Com support databases listed in this section, check the README.TXT ﬁles in the ENGLISH, INSTALLS, and NWSERVER subdirectories and check the Help text ﬁles located in the HELP directory on the EtherCD.

Accessing the 3Com Knowledgebase

To access a database of technical information that can help you diagnose and solve NIC installation, conﬁguration, and upgrade problems, go to:

http://knowledgebase.3com.com

Accessing the 3Com NIC Help System

To access the 3Com NIC Help system:

1Make sure the NIC, its driver, and the 3Com NIC Diagnostics program are installed. See “Installing the 3Com NIC Diagnostics Program” on page 26 for instructions.

2Open the Windows Start menu.

3Select Programs, and then 3Com NIC Utilities.

4Select 3Com NIC Doctor Help. The main Help screen appears.

5Click Help Topics to display a list of Help topics or click Find to search for a Help topic.

Accessing Release Notes and Frequently Asked Questions

To access release notes and frequently asked questions about the NIC:

1Make sure the NIC, its driver, and the 3Com NIC Diagnostics program are installed. See “Installing the 3Com NIC Diagnostics Program” on page 26 for instructions.

2Open the Windows Start menu.

3Select Programs, and then 3Com NIC Utilities.

4Click 3Com NIC Doctor.

The 3Com NIC Diagnostics General screen appears.

5Click the Support tab.

The Support screen appears.

6Click Support Databases to display customer support databases about the NIC in three categories:

Release notes — Display tips about installing and using the NIC.

Frequently asked questions — Display common questions asked by customers and answered by 3Com support experts.

Knowledgebase topics — Display NIC compatibility topics.

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Contents User Guide 3CR990-FX-97United States Government Legend Contents Contents Troubleshooting the NIC Installing NetWare DriversConﬁguring the NIC Running NIC Diagnostics Installing the 3Com DMI AgentEtherCD Content and Navigation Installing a 3Com NIC While Installing the NOSIndex Regulatory Compliance Information Page Conventions About This GuideIcon Information That About This Guide Convention DescriptionIntroduction Onboard 3XP ProcessorData Encryption Product Name/Description Model NumberSupported NIC Feature Description 3CR990-FX-97 NIC FeaturesIntroduction Ofﬂoad Features 3CR990-FX-97 NIC FeaturesRemote Wake-Up and Multiple NIC Installations Remote Wake-UpIntegrated Boot ROM with Managed PC Boot Agent MBA Desktop Management Interface DMIRemote Control Hot Plug NIC InstallationFlow Control Features Keep-AliveOfﬂine Diagnostics Link NegotiationInstallation Overview Safety PrecautionsInstallation Requirements Installing Multiple NICsInstalling and Connecting the NIC Upgrading Windows 95 to WindowsInstalling From Diskette Making a DOS-Bootable DisketteCreating Installation Diskettes Upgrading Windows 98 to Windows MeProduct Registration Click Register Product, and then Register OnlinePreparing the NIC and the Computer Connector Cable Maximum Network SegmentPreparing the NIC and the Computer Installing and Connecting the NIC Understanding the LEDs Description Flashing Steady OffInstalling Software Getting Help Software Installation RequirementsClick Downloads Installing the Network Driver Using the EtherCD Before Installing the Network DriverInstalling NIC Drivers and Diagnostics For Windows Installing the DriverInstalling the Network Driver Using the EtherCD Verifying the Driver InstallationWindows Click Device ManagerWindows NT Click Have DiskInstalling the Network Driver Using the EtherCD Windows Me Windows Windows Installing the Network Driver Using the EtherCD Installing the 3Com NIC Diagnostics Program Starting the 3Com NIC Diagnostics Program Starting the 3Com NIC Diagnostics ProgramUpdating the Network Driver and NIC Software Installing Multiple NICsWindows XP, Windows 2000, Windows Me, Windows 98 Installing Multiple NICs Installing NIC Drivers and Diagnostics For Windows Enabling Ofﬂoads Using Windows Ofﬂoad FeaturesClick Conﬁgure Using Windows Ofﬂoad Features Value Offload Function EnabledConﬁguring IPSec Ofﬂoads Conﬁguring Ofﬂoads for a Group of Different NICsOfﬂoading Encryption Processing Auto-Selecting Basic or Strong Encryption ProcessingConﬁguring IPSec for Windows Conﬁguring IPSec OfﬂoadsSelect IP Security Policy Management, and then click Add Creating a Security PolicyEncryption Type Level Description Clear the Activate the default response rule check box Left pane, click IP Security Policies on Local MachineUsing Windows Ofﬂoad Features Downloading the High Encryption Pack for Windows Select Un-assignPage Installing NetWare Drivers Installing and Conﬁguring the NetWare DriverUsing the Latest Support Packs NetWare Version Required Support PackNetWare Driver Installation Requirements Installing NetWare DriversObtaining NetWare Loadable Modules Netware Packet Receive BuffersInstalling the NetWare Driver Installing and Conﬁguring the NetWare DriverSlot Numbers for Multiple NICs Obtaining Slot NumbersInstalling the NetWare Driver Using Inetcfg For NetWare 5.x orVerifying the PCI Slot Number Verifying the Installation and Conﬁguration From the Available Options menu, select LAN/WAN DriversChanging NetWare Driver Conﬁguration Parameters Changing NetWare Driver Conﬁguration ParametersPage Default NIC Settings Option Description SettingsConﬁguring the NIC MbpsConﬁguration Methods Conﬁguring the NICOption Description Method Description RequirementsUsing the 3Com NIC Diagnostics Program Changing General NIC Conﬁguration SettingsChanging General NIC Conﬁguration Settings Using the 3Com DOS Conﬁguration Program Conﬁguring the Managed PC Boot Agent MBA Enabling or Disabling the Boot ROM SettingBooting From the Network Conﬁguring the Managed PC Boot Agent MBABBS BIOS-Compatible PCs Non-BBS BIOS-Compatible PCsDisabling the 3Com Logo Disabling the 3Com LogoPage Viewing the NIC LEDs in the Diagnostics Program Troubleshooting the NICInterpreting the NIC LEDs Accessing 3Com Support Databases Troubleshooting Problems with the LEDsAccessing the 3Com Knowledgebase Accessing the 3Com NIC Help SystemTroubleshooting the NIC Installation Problems/Error MessagesCleaning Up a Broken Installation Troubleshooting the NIC InstallationTroubleshooting the Network Connection Tip DescriptionTroubleshooting Remote Wake-Up Troubleshooting Remote Wake-UpRemoving the Network Driver Double-clickNetwork AdaptersWindows 95, 98, and Me Running NIC Diagnostics Running the NIC Diagnostics Tests Running the 3Com DOS Diagnostics ProgramRunning NIC Diagnostics Running the Network Test Running the NIC Diagnostics TestsTab Description Viewing the NIC LEDs in the 3Com Diagnostics Program Viewing Network StatisticsRunning the NIC Test Click Perform NIC TestUsing the 3Com Icon in the Windows System Tray Removing the 3Com NIC Diagnostics ProgramUsing the 3Com Icon in the Windows System Tray Enabling the IconPage 3CR990-FX-97 NIC Speciﬁcations HardwareNetwork Interface EnvironmentNetwork cable connector Transceiver Cabling RequirementsSpeciﬁcations and Cabling Requirements SpeedInstalling the 3Com DMI Agent About the 3Com DMI AgentInstalling the 3Com DMI Agent Installing the 3Com DMI AgentSystem Requirements Client PC RequirementsClick Install 3Com DMI Agent Now Page EtherCD Content and Navigation Links DescriptionEtherCD Content and Navigation Root Subdirectories ListEnabling Auto Insert Subdirectory ContainsText Files List Text Files ListFile Name File Description Page Windows Fresh Installation NetWare Fresh InstallationInstallation Instructions RequirementsInstalling a 3Com NIC While Installing the NOS \nwserverOnline Technical Services 3Com Knowledgebase Web ServicesTechnical Support World Wide Web SiteSupport from Your Network Supplier Support from 3ComReturning Products for Repair Technical SupportIndex NumericsIndex MediaselectVerbose Index Regulatory Compliance Information FCC Class B StatementRegulatory Compliance Information ModelDescription