Contents
8
Troubleshooting the NIC
Interpreting the NIC LEDs 81
Viewing the NIC LEDs in the Diagnostics Program 82
Troubleshooting Problems with the LEDs 82
Accessing 3Com Support Databases 82
Accessing the 3Com Knowledgebase 82
Accessing the 3Com NIC Help System 82
Accessing Release Notes and Frequently Asked Questions 83
Troubleshooting the NIC Installation 83
Problems/Error Messages 83
Cleaning Up a Broken Installation 83
Troubleshooting the Network Connection 84
Troubleshooting Remote Wake-Up 85
Troubleshooting a Network Connection 86
Troubleshooting Hubs 87
Cabling Pinouts 87
Removing the Network Driver 87
Windows 2000 87
Windows NT 4.0 88
Windows 95, 98, and Me 88
Removing 3Com Dynamic
Access
Advanced Server Features 89
Windows NT 4.0 89
Windows 2000 89
NetWare 90
9
Running NIC Diagnostics
Running the 3Com DOS Diagnostics Program 91
Running the NIC Diagnostics Tests 92
Running the Network Test 93
Running the NIC Test 93
Viewing the NIC LEDs in the 3Com Diagnostics Program 93
Viewing Network Statistics 94
Using the 3Com Icon in the Windows System Tray 94
Enabling the Icon 94
Displaying Network Statistics 95
Removing the 3Com NIC Diagnostics Program 95
A
Specifications and Cabling Requirements
3C990B NIC Specifications 97
Cabling Requirements 98
RJ-45 Connector Pin Assignments 98
B
Installing the 3Com DMI Agent
About the 3Com DMI Agent 99
System Requirements 99
Client PC Requirements 99
Network Management Requirements 100
Installing the 3Com DMI Agent 100