[CentOS] NetworkManager / wireless on latest Centos7 installs

Tue Jun 9 09:51:46 UTC 2015
johan.vermeulen7 at telenet.be <johan.vermeulen7 at telenet.be>

Hello All, 

on the latest installs I've done, on 2 different types of Latitude laptops, with 3 different wireless cars, of Centos7 and Mate desktop, 
it looks to me like NetworkManager is nog managing wireless. 
When clicking the nm icon in the top right corner, I'm not seeing access points. 

Wifi seems enabled 

[root at localhost ~]# nmcli g 
STATE CONNECTIVITY WIFI-HW WIFI WWAN-HW WWAN 
connected full enabled enabled enabled enabled 

but unmanaged 
[root at localhost ~]# nmcli d 
DEVICE TYPE STATE CONNECTION 
enp0s25 ethernet connected enp0s25 
lo loopback unmanaged -- 
wlp12s0 wifi unmanaged -- 

I always start from a minimal install. 
Then I install X Window packages, and Mate 

The only difference I can think of, is that I now installed from Centos7.1 minimal install media, and before from Centos7 DVD. 
But there I also select minimal install. 

How can I change this? 

Greetings, Johan