"Red" network interface down

[m.traeumner (Michael Träumner)]

You should have a look if there is an error at the messages.log after reboot?
Also you can increase the log-level like explained here:

How NethServer decides if an interface is UP or DOWN?

Open /etc/lsm/lsm.conf and set debug=9 at top (you’ll find debug=0). Then type restart lsm. BTW, it lost the configured number of pings you set in Multi WAN.