> Always fails for me. On seversl different RasPi. 2019-03-26T13:35:09 ntpd[26050]: DNS: dns_probe: (null), cast_flags:1, flag= s:21001 Are you trying to use NTS on an IP Address? Known bug. [That "(null)" happens on that case.] I thought I mentioned that case before but I guess I wasn't loud enough. -- These are my opinions. I hate spam.