The Adapter's Leds; The Usb Icon - Linksys USB100H1 User Manual

The Adapter's LEDs

ACT
HOMELINK
10
100
Only one of the HOMELINK, 10, or 100 LEDs should be illuminated at any
time. If none of the three are illuminated, your USB Network Adapter is not
making a successful network connection.

The USB Icon

Whenever you see the USB Icon (below), a USB port is nearby.
4
The Activity LED will flicker orange when network data is
passing through the USB Network Adapter.
The HomeLink LED will illuminate green if a successful
connection is made to a Phoneline network.
The 10Mbps LED will illuminate green if a successful
10Mbps connection is made to an Ethernet network.
The 100Mbps LED will illuminate green if a successful
100Mbps connection is made to a Fast Ethernet network.
Linksys HomeLink™ Series