At physical disconnect of a network the computer hangs, stops to work.
Computer IBM/Lenovo ThinkPad T60p
Now if to disconnect LAN cable when the computer works from the accumulator, the computer in some seconds hangs.
The monitor works, the keyboard and the mouse are blocked. It is switched off only after long pressing the power button.
The same if to switch off 3Com switch to which the computer is connected.
If the computer works from an electric...