Samsung computer User Manual page 66

Wired Network
Chapter 3.
65
Using the computer
Wake On LAN activated by Ping is not supported.
When connected to a 100Mbps/1Gbps wired LAN and the
computer exits Sleep/hibernation mode, a message appears
informing you of a connection to a 10Mbps/100Mbps
wired LAN. This happens because when the computer exits
standby/hibernate mode, restoring the network takes about
3 seconds. When the network is restored, it operates at
100Mbps/1Gbps.
When system is running on battery, some time it may take
a few second extra after inserting LAN cable to be able to
connect to internet. This symptom happen as a result of
power saving feature to reduce battery consumption.
When system is running on battery, the Wired LAN speed
is decreased automatically to reduce battery consumption.
In such case, a 1Gbps /100Mbps LAN would function at
100Mbps/10Mbps speed.