Hi, I discovered an issue that ntpd doesn't run script (-S option) every 11 mins, I measured 36 mins already and I'm afraid it's not final delay. When ntpd starts, after stratum change run, it's approximately 11 min (up to 17) but after a while, when doing periodic run, it's such a long time. Poll interval is reported 1024 or 2048. Does it relay on poll interval and how? Thank Jiri