There is an error in netmask display in the web view. I use DHCP and RoPieee has correct running config:
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.111.17 netmask 255.255.255.192 broadcast 192.168.111.63
However in web view at Network->More info this is displayed: