IBM 704 manual Troubleshooting the 100/10 PCI Ethernet Adapter, Network Connection Problems

Troubleshooting the 100/10 PCI Ethernet Adapter

Troubleshooting the 100/10 PCI Ethernet Adapter

This section provides troubleshooting information for problems that might occur when the 100/10 PCI Ethernet adapter is installed in the server.

Network Connection Problems

If the adapter cannot connect to the network, check the following:

ŸMake sure that the cable is installed correctly.

The network cable must be securely attached at all connections. If the cable is attached but the problem persists, try a different cable.

If you set the Ethernet adapter to operate at 100 Mbps, you must use Category 5 cabling. Refer to the Hardware Specifications and Cabling Information section in the help file for a list of recommended cables and information on how to install cabling.

If you directly connect two workstations (no hub), use a crossover cable. Refer to the Hardware Specifications and Cabling Information section in the help file.

ŸCheck the LEDs on the rear of the Ethernet adapter.

The Ethernet adapter has three diagnostic LEDs beside the cable connector. These lights help indicate whether a problem exists with the connector, cable, or hub.

–The LNK LED illuminates when the adapter receives a LNK pulse from the hub. If the LED is OFF, there might be a bad connector or cable, or a problem with the hub. The LNK LED is also OFF when you run the diagnostic tests in the Setup program.

–The ACT LED illuminates when the adapter detects read or write activity on the network, even when there is no activity on the adapter. If the ACT LED is not on, make sure that the hub and network are operating and that the correct drivers are loaded.

–The 100 LED illuminates when a 100 Mbps connection is established.

Chapter 5. Solving Problems 253