Cannot setup static IP address with NetworkManager

[alicavus]

The system does not obey manual IPv4 setup in NetworkManager. Somehow dhcpcd requests dynamic IP address', which leads to nasty behavior as obtaining wrong IP address.
I can't brose web sites and can't perform update with pisi. I can ping the main router or try to access it's web interface with the browser, but can't resolve any website.
If I switch on/off via the NM applet I have very slow connection which is dying after few seconds.

$ sudo nmcli connection show "Wired connection 1":

ipv4.method:                            manual
ipv4.dns:                               208.67.222.222,192.168.2.1
ipv4.addresses:                         192.168.2.21/24
ipv4.gateway:                           192.168.2.1

If I configure static IP address' in /etc/dhcpcd.conf:

interface p3p1
    static ip_address=192.168.2.21/24
    static routers=192.168.2.1
    static domain_name_servers=192.168.2.1

or directly call dhcpcd itself:

$ sudo dhcpcd -S ip_address=192.168.2.21/24 -S routers=192.168.2.1 -S domain_name_servers=192.168.2.1 -s 192.168.2.21/24  p3p1

then everything is fine.

I don't messed with service dhcpcd, it's unchanged since I installed the system.