I'm running 3.041.
I added a host in my definitions and selected it in the NTP window. 2 hours have passed and it has not attempted to retrieve the network time. The NTP server selected is local. My network is setup such that the internet is connected to a DSL router then to a switch. The Astaro box and NTP server are both connected to the switch. The NTP server runs a software firewall which has not detected any connection attempts. The packet filter logs show no entries for port 37. The help file says it connects evey hour.