IBM 5000 manual Controller, Network Connection Problems, Link

				Troubleshooting
Troubleshooting the 10/100		Mbps	Ethernet	Controller
This	section provides troubleshooting information for problems that might
the	10/100	Mbps	Ethernet	controller.

Network Connection Problems

If the Ethernet controller cannot connect to the network, check the f

Ÿ Make sure that the cable is installed correctly.

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

If you set the Ethernet controller to operate at 100 Mbps, you Category 5 cabling.

If	you	directly		connect	two	workstations (without a hub), or if
a hub		with	X ports, use		a	crossover		cable.
Note:	To	determine		whether	a	hub	has	an	X port, check the port
	label		containsX,an the		hub	has	an	X	port.

ŸDetermine if the hub supports auto-negotiation. If not, try config

integrated Ethernet controller manually to match the speed and duple the hub.

ŸCheck the Ethernet lights on the information panel.

These lights indicate whether a problem exists with the connector, hub.

– The	Ethernet	Link	Status	light	illuminates		when	the	Ethernet	receiv
LINK	pulse from the hub. If				the	light	is	off,	there	might be
or	cable, or	a	problem	with	the	hub.

– The Ethernet Transmit/Receive Activity light illuminates when the Et controller sends or receives data over the Ethernet network. If Transmit/Receive Activity light is off, make sure that the hub are operating and that the correct device drivers are loaded

– The Ethernet Speed 100 Mbps light illuminates when the Ethernet LAN speed is 100 Mbps.

ŸMake sure that you are using the correct device drivers, supplie server.

Ÿ	Check	for	operating-system-specific causes for the problem.
Ÿ	Make	sure	that	the device drivers on the client and Netfinity 5000
	using	the	same	protocol.
Ÿ	Test	the	Ethernet.

Chapter 6. Solving Problems 149