Is your firewall blocking udp packets? ntp used udp, and won't work if udp traffic isn't passed.
Can we overcome that ?
Typically, pings (icmp) are allowed, which may make diagnosing this difficult. tcpdump is your friend.
How can I communicate with my friend ? I am not such an expert. Thanks in advance, Jerome BENOIT --To UNSUBSCRIBE, email to debian-user-request@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org