Some models of HP notebooks will be clicked on the Shutdown button when the phenomenon of automatic restart (such as: DV2803, V3608TX), this is the network card wake on LAN function, which is the wake up function.
Method One:
The solution is to press F10 at boot up and enter the BIOS setup interface, select System Setup (Configuration)----> Accessibility (Boot options)------> Built-in Network appliance boot function (Internal Network adaper boot) "Deactivate it (Disable), and then press F10 to save and reboot."
In the future, plug in the network cable can also normal shutdown.
Method Two: Originally in the network card settings have related options: My Computer--Properties--hardware--device device--network adapter. Select your network adapter, and then right-click to view Properties-advanced-to set the "Wake from Shutdown" and "Wake Up" respectively to: "None" and "off". Solve the problem. Method Three: Open Device Manager (Windows key +pause break)-> network adapter-> Power management->uncheck off "allows this device to leave the computer out of standby.
Note: After shutting down the machine, do not casually move the keyboard, otherwise it is easy to encounter QuickPlay startup key, that very sensitive, accidentally restarted.