Toshiba PA3541U-2PRP dynadock VGA User Manual page 38

dynadock™
Other Devices
If another device is connected to a port on the dynadock and the computer
goes into Standby/Sleep or Hibernate Mode, that device will not function.
For example, if you are using the Ethernet port for high-speed network
access, network access will not be available until the computer returns to
an active state.
EN-38 User's Manual