@dnutan I installed the system new on a different hardware - same result. After the installation of Nethserver lost my network connectivity.
db networks show
enp2s0=ethernet
bootproto=none
gateway=192.168.2.1 (correct)
ipaddr=192.168.2.182
netmask=255.255.255.0
role=green
httpd-admin is active
Did the development team change anything in the installation script? Last week I was able to install without such problems.