CentOS 7 on HP Pavilion dv6 Hibernation problem

[A66aT]

Hello.

I installed CentOS 7 (not desktop version, only console) on HP Pavilion dv6, but, when i close the lid, network is shutting down.I thought, that was a problem with the hibernation and sleep. I added "powersave=off consoleblank=0" to kenrel command line, but that`s not helped. Now when Laptop turns on, if i close the lid, it works for, about 10 minutes, and then problem repeats, to turn is on back, i had to open the lid back. Please, help me solve that, i need to work with thi device (it is used as server) with closed lid.