My SUSE does not allow access to the outside world. Ping says "Network is unreachable." Ping on another machine in intra (192.168.1. works, no worries. Firewall IS disabled

I'm using static ip for the server. Now if I used DHCP (which the windows machine is using), I always get - this does not seem to be correct for me. I'm suspicious that I've set somewhere that the machine is using some kind of local DHCP server... - the actual DHCP server (Zyxel modem) has IP pool starting address . So obviously(?) my machine is not getting IP from that router.

Where could I see if there is some strange DHCP settings in my Suse? Any ideas?