Troubleshooting the Network Connection | 3Com 3CR990-TX-95 specs

Troubleshooting the Network Connection

133

■Installs the latest network driver.

You can reinstall the 3Com NIC Diagnostics program after completing this procedure. See Installing the 3Com NIC Diagnostics Program on page 50 for instructions.

1Insert the EtherCD in the CD-ROM drive. The EtherCD Welcome screen appears.

2Click Drivers, and then click Utilities.

3Click Clean Up Failed Installation.

4Click Proceed.

A warning message appears.

5Click OK.

A message appears stating that all of the EtherLink NICs have been removed from your system.

6Click OK.

7Exit the EtherCD, and then exit Windows.

8Reboot the computer.

9Install the network driver, as described in Installing the Network Driver Using the EtherCD on page 40.

If you are prompted for 3Com ﬁles when Windows restarts, open the drop-down box and select the following path:

\options\cabs

To verify successful installation, see Verifying Successful Installation on page 48.

Troubleshooting the Network Connection

If you encounter problems with using the NIC or connecting to the network, check the table below for troubleshooting tips.

CAUTION: Before inserting or removing the NIC from the computer, turn the computer power off and unplug the power cord.

Image 133

3Com 3CR990-TX-95, 3CR990-TX-97, 3CR990SVR97, 3CR990SVR95 Troubleshooting the Network Connection, Click Proceed Click OK

Contents

Part No -1742-001 Published May 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Installing and Connecting the NIC Installing Dynamicaccess Software in Windows Installing Netware Client and Server Drivers Configuring the NIC Troubleshooting the NIC Ethercd Content and Navigation Technical Support NIC/Description Model Number About this Guide Icon Description ConventionsConvention Description Product Name/Description Model Number Overview Data Encryption Onboard 3XP ProcessorLAN Encryption Software for Windows 95/98 High Encryption Pack for Windows 3CR990 NIC Features 3XP Processor Advanced Server Features Self-Healing Drivers Load BalancingFailover Primary failure VLANs Trafﬁc Prioritization Remote Wake-Up Server Features Using Other NICsWindows NT and Windows 2000-Planning the Conﬁguration on Remote Wake-Up Requirements Remote Wake-Up and Multiple NIC Installations Integrated Boot ROM with Managed PC Boot Agent MBARemote Wake-Up Cable Desktop Management Interface DMI Remote System Alerts Hot Plug NIC InstallationDhcp Server Prevention Ofﬂine Diagnostics DynamicAccess LAN Agent Windows 2000 Ofﬂoad Features Safety Precautions Installation Overview RAM Installation Requirements Installing Multiple NICs Installing From DisketteUpgrading Windows 95 to Windows Updating the Network Driver and NIC Software Creating Installation Diskettes Making a DOS-Bootable Diskette Product Registration Follow the prompts as they appear Preparing the NIC and the ComputerDecide whether you want to use Remote Wake-Up Network Envi Cable Required Maximum Ronment Cable Length Make sure that cable requirements are met Installing and Connecting the NIC Carefully insert the NIC in the empty PCI slot, as shown Replace the computer cover and plug in the power cord Connecting the cable to the NIC backplate Connecting the Remote Wake-Up Cable Replace the PC cover and plug in the power cord Installing Software Software Installation Requirements Installing NIC Drivers Windows Getting Help Installing the Network Driver Using the EtherCDWindows Click Next Windows NTClick Finish Click Close Click Add Click Yes to restart the PC Turn the PC power on Click Yes to restart your computer You must restart your computer to complete the installation New Hardware Found Do one of the following Update Device Driver WizardClick Yes Enter the path to the CD-ROM drive, and then click OK Right-click the My Computer icon, and then click Properties Verifying Successful Installation Select the Resources tab Windows 95 and Windows Installing the 3Com NIC Diagnostics Program Double-click the 3Com NIC Diagnostics icon Starting the 3Com NIC Diagnostics ProgramUpdating the Network Driver and NIC Software Restart Windows Windows 2000, Windows 98, and Windows Installing Multiple NICs Select the Adapters tab Click Add Repeat the process for each additional NIC to be installedInsert the EtherCD Close the Network screen Client PC Requirements Installing the DynamicAccess LAN Agent for a Client NIC Installing the LAN Agent Conﬁguring the DynamicAccess LAN Agent Verifying Successful InstallationRestart the PC Removing the DynamicAccess LAN Agent Installing DynamicAccess Software for a Server NICStart Windows Insert the EtherCD in the CD-ROM drive Installing DynamicAccess Software for a Server NIC Planning the Conﬁguration Conﬁguring Groups and VLANs for a Server NIC Conﬁguring Groups and VLANs for a Server NIC Number of VLANs Windows Working With Server Features Windows NT To disable all load balancing-Clear Double-click the DynamicAccess SW Server iconCreating a Group Specifying a Dedicated IP Address Adding NICs to a GroupClick the Load Balance/RSL tab Load Balance/RSL window Click Add NIC Creating a Vlan Changing an IP Address Saving the Conﬁguration Specifying Trafﬁc PrioritiesClick the appropriate tab Changing the Primary NIC Disabling Load Balancing for a GroupRemoving a NIC from a Group Click the Load Balance/RSL tab Displaying NIC Properties Deleting or Editing a VlanDisplaying Group Properties Specifying Failover from Gigabit to 10/100 PCI Disable load balancing for the group Troubleshooting a Load Balancing ConﬁgurationSymptom Tip Add 3Com server NICs to the group Identifying Windows 2000 Miniport and LAN Connections Changing Windows 2000 Property Settings Using Windows 2000 Ofﬂoad Features Enabling Ofﬂoads Click Conﬁgure Value Offload Function Enabled Conﬁguring Ofﬂoads for a Group of Different NICs Installing DynamicAccess LAN Encryption Software Installing LAN Encryption Software on Windows Minimum Installation RequirementsHardware Requirements Software Requirements Click NIC Software Click Yes to continue Enter your network password when prompted With the Winsock2 Setup screen displayed, click OK Click OKClick Yes Click OK Insert the Windows 95 CD-ROM and click OK Installing LAN Encryption Software on Windows Click Yes to continue Installing Dynamicaccess Software in Windows Adding the Entrust File Viewing the Administrator’s Guide Online Starting DynamicAccess LAN Encryption Software Uninstalling LAN Encryption Software Page Using the Latest Support Packs Installing and Conﬁguring the NetWare Server DriverNetWare Version Required Support Pack Latest patch files NetWare Version Required Support Pack Obtaining NetWare Loadable ModulesNetWare Server NLM Name Before installing NICs After installing two NICs Server Software Installation RequirementsNetware Packet Receive Buffers Slot Numbers for Multiple NICs Obtaining Slot Numbers Installing the NetWare 3.12 Server Driver Save and exit the ﬁle, and then reboot the server Press Insert again Press EnterSelect 3C99x, and then press Enter Type the name of the NIC and press Enter Press Esc to Exit Press Enter to save the changesSelect Reinitialize System Press Enter to select the driver Loading the 3Com EtherCD Loading the Driver Specifying the Slot Number Load 3C99X.LAN slot=slot1 NAME=name1 FRAME=frametype1 Installing Multiple Server NICs Boot the NetWare server with the -na option Installing Server FeaturesVerifying the PCI Slot Number From the Conﬁguration Options screen select Product options Conﬁguring Groups Enter this commandMake the following changes to the AUTOEXEC.NCF ﬁle Save the AUTOEXEC.NCF ﬁle and return to the server prompt At the system prompt, enter load monitor Verifying the Installation and ConﬁgurationSelect a driver to view its associated statistics Log in or map to the server Changing NetWare Driver Conﬁguration ParametersParameter Range of Values Description Maintaining Groups Reboot the server Install the new secondary NICAdding a Secondary NIC to a Group Adding a Group Install the NICs 107 Group Server Feature CommandsDisplay status Help Link timeoutProbe interval Send timeout Receive timeoutRetry count Ungroup Wait timeout Troubleshooting a Group Conﬁguration Option Description Settings Default NIC Settings Auto Select ALL Method Description Requirements Conﬁguration Methods Using the 3Com NIC Diagnostics Program Changing General NIC Conﬁguration SettingsMethod Description Click OK to save the changes and exit the program Using the 3Com DOS Conﬁguration Program Enter the following at the DOS prompt d\3c99xcfg.exe Enabling or Disabling the Boot ROM Setting Conﬁguring the Managed PC Boot Agent MBABooting From the Network Make sure that the NIC boot ROM setting is Enabled BBS BIOS-Compatible PCsSet the MBA manually as the ﬁrst boot device Reboot the PC Change the MBA default boot setting from Local to Network Non-BBS BIOS-Compatible PCsDisabling the 3Com Logo Encryption Description Type Level Configuring IP Security Deﬁning the Console Creating a Security Policy Select IP Security Policy Management, and then click Add Creating the PolicyClick Next and then Finish Select a Speciﬁc IP Address in the pull-down list Creating a FilterEnter destination IP address, and then click Next Binding the Filter Accept the default, and then click NextCreating the Filter Action Binding the Filter Action Disabling Encryption Enabling Encryption State Meaning Interpreting the LEDs LNK Viewing the NIC LEDs in the Diagnostics Program Accessing the 3Com Knowledgebase Accessing 3Com Support DatabasesAccessing the 3Com NIC Help System Accessing Release Notes and Frequently Asked Questions Problems/Error Messages Troubleshooting the NIC InstallationCleaning Up a Failed Installation Click Proceed Click OK Troubleshooting the Network Connection Tip Description Make sure that you are using the latest driver for the NIC Troubleshooting Remote Wake-UpCheck the computer Bios Check the Remote Wake-Up cable connection Connect a straight-through cable from the PC to the hub Troubleshooting a Network Connection Cabling Pinouts Troubleshooting Hubs Exit the Device Manager and shut down Windows Removing the Network Driver Click the Device Manager tab From the Start menu, select Settings/Control Panel Removing DynamicAccess Server Features NetWare Enter this command at the promptPage Running NIC Diagnostics Running the NIC Diagnostics Tests Running the 3Com DOS Diagnostics ProgramReboot the computer using a DOS-bootablediskette Tab Description Running the Network Test Running the NIC Test Viewing the NIC LEDs in the Diagnostics Program Click the Statistics tab. The Statistics screen appears Viewing Network Statistics Enabling the Icon Using the 3Com Icon in the Windows System TrayDisplaying Network Statistics Click Proceed, and then follow the prompts on the screen Removing the 3Com NIC Diagnostics ProgramPage Obtaining Drivers Page 3CR990 NIC Speciﬁcations Specifications Twisted-Pair Cable Cabling Requirements Category Use 10BASE-T Operation 100BASE-TX Operation RJ-45 Connector Pin Assignments Pause Frames Flow ControlLink Negotiation Page About the 3Com DMI Agent 3C OM DMI a Gent System Requirements Network Management Requirements Installing the 3Com DMI AgentFollow the prompts on the screen Restart the PC when prompted LinksDescription EtherCD Navigation Auto Insert Root SubdirectoriesText Files Subdirectory Description File Name File Description 165Page NetWare Fresh Installation Windows Fresh InstallationRequirements Driver Summary screen, select 3C990.LAN and press Enter Installation Instructions When the installation is ﬁnished, edit the STARTUP.NCF ﬁle Page World Wide Web Site Online Technical Services 3Com Bulletin Board Service 3Com Knowledgebase Web ServicesAccess by Analog Modem 3Com FTP Site Access by Digital Modem 3Com Facts Automated Fax ServiceSupport from Your Network Supplier 847 262 Country Region Telephone Number Asia Paciﬁc Rim Support from 3ComEurope Country Region Returning Products for RepairEurope, South Africa, and Middle East Latin America Country Region Telephone Number Fax Number To obtain an authorization number, call or fax Numbers Index MBA PCI NIC 131 NLMs Displaying, Windows Self-healing drivers SHDs OSR2 Index Page FCC Class B Statement Industry Canada Class B Emission Compliance Statement Page Product Registration