Maya is asking me license i have two ethernet how to start my maya

it was working good but now it is asking me for serial number,license and showing two Ethernet ................. i have copy the one and past it to aw dat file in-front of host id after saving the file i drag it over the another "awkeygen" file a window came and closed rapidly then i restart my computer and start maya but again it is asking me license and serial no etc. i also can not see my common utilities what to do i am fed up now how can i start it as soon as possible plz help me fast