I am trying to syncronice my pc to a ntp server, but the "debug ntp" show:Feb 15 18:24:46.448: NTP: packet from 10.10.10.1 failed validity tests 64Feb 15 18:24:46.448: Peer/Server Clock unsynchronizedFeb 15 18:24:46.448: Peer/Server Stratum out of bo...