hi friends!

I need ur help plz!
I have installed centOS on hp laptop(15-n010tx), but I can't access wifi and when i open the NetworkManager icon I see the word "Wireless" is disabled it doesn't function.

I was wondering if this is due to network card driver MISSING or something else.
here is what I have been through:

when i restart network(#service network restart) i get this message "Bringing up interface eth0: Error: Connection activation failed: Device not managed by NetworkManager or unavailable"

when i do #dmesg | grep eth I get "eth0: RTL8106E"

and when i do #lspci i get "Network controller Ralink corp RT3290.

any help will be highly appreciated