On 12/02/15 23:26, Patrick Bervoets wrote: > Following the recent ntp posts I decided to check my setup with ntptrace. > > localhost: stratum 3, offset -0.000020, synch distance 0.016330 > 81.95.117.62: timed out, nothing received > ***Request timed out am guessing here, but from the man page: For ntptrace to work properly, each of these servers must implement the NTP Control and Monitoring Protocol specified in RFC 1305 and enable NTP Mode 6 packets. --- Maybe that server doesn't implement those controls and/or doesn't have Mode 6 enabled. P.