Yes, infact embedded board doesn't have a button battery, so every reboot means that the date will reset on 1 Jan 1970: for that reason the offset is very high. I'll try chrony to fix this, and I let's you know the result. The output it's the same, both IP and Hostname: 5 May 20:55:46 ntpdate[1558]: no server suitable for synchronization found The problem is not the Hostname; before I posted the command using the IP, but the behaviour it's always the same. (I checked also /etc/hosts ) Enea Scioni -- View this message in context: http://ros-users.122217.n3.nabble.com/ntp-and-multi-machines-tp765453p779699.html Sent from the ROS-Users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ _______________________________________________ ros-users mailing list ros-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ros-users