I'm not very familiar with new KM models.
We have this C308 fresh out of the box that started issuing C262. We disabled the 2nd network card settings and the machines works but now we can't get to the network settings. It gets an IP from the DHCP and it shows in Device Information but when we go to Administrator Settings there is no Network Settings button. And another thing, if we select Security Settings the machine freezes. We have rewritten the firmware but the problem stays the same.