If your system has multiple IP addresses, you might need to program the Aloha Nic card address into the local settings file xml file. That file can be found in the Aloha Kitchen data folder. If this is the issue, the debout in the aloha kitchen tmp folder would mention that the system found multiple IP addresses and it will list which one it has elected to use. If it is using a different one that your Aloha network, it will give the no BOH error.