3Com 3C3FE575CT User Manual - Roubleshooting

6

T

ROUBLESHOOTING

PC Card LEDs

Before the PC Card and cable LEDs can be used for troubleshooting, the PC Card 

must be connected to the network and the driver must be installed.

The LEDs and LED status for the models 3CCFE575CT and 3CXFE575CT are 

shown below. 

LED

On

Off

Flashing

Both On

Both Off

10 

Mbps

Good 10BASE-T 

connection 

between PC Card 

and hub

No connection. 

(Off when 100 LNK 

LED is on.)

There may be a 

problem with your 

physical connection. 

Check that all cables 

are connected securely.

Indicates resource 

conflict with the 

NIC and another 

device in the 

system.

Indicates one of the 

following:

■

No network 

connection

■

Drivers not 

loaded

■

Resource conflict

100 

Mbps 

Good 100BASE-TX 

connection 

between PC Card 

and hub

No connection. 

(Off when 10 LNK 

LED is on.)