>> Are you trying to use NTS on an IP Address? Known bug. [That >> "(null)" happens on that case.] > Nope. Here is the line from ntp.conf that crashes my slow RasPi. But not my > fast RasPi: > server 204.17.205.23 maxpoll 5 nts # pi3 That sure looks like at IP Address to me. -- These are my opinions. I hate spam.