@c-po So what's interesting here is it seems like it might be something with the reconfiguration of the daemon. Try deleting and then adding the default config, like this (obviously after delete service ntp and commit):
vyos@cr01-vyos# set service ntp allow-client address 127.0.0.0/8 [edit] vyos@cr01-vyos# set service ntp allow-client address 169.254.0.0/16 [edit] vyos@cr01-vyos# set service ntp allow-client address 10.0.0.0/8 [edit] vyos@cr01-vyos# set service ntp allow-client address 172.16.0.0/12 [edit] vyos@cr01-vyos# set service ntp allow-client address 192.168.0.0/16 [edit] vyos@cr01-vyos# set service ntp allow-client address ::1/128 [edit] vyos@cr01-vyos# set service ntp allow-client address fe80::/10 [edit] vyos@cr01-vyos# set service ntp allow-client address fc00::/7 [edit] vyos@cr01-vyos# [edit] vyos@cr01-vyos# set service ntp server time1.vyos.net [edit] vyos@cr01-vyos# set service ntp server time2.vyos.net [edit] vyos@cr01-vyos# set service ntp server time3.vyos.net [edit] vyos@cr01-vyos# commit Archiving config... sftp://stor01a-rh9.int.trae32566.org/bhs/cr01-vyos Host 'stor01a-rh9.int.trae32566.org' not found in known hosts. Fingerprint: 1083a0c4ff8380df83596781bcddf2a9 Do you wish to continue? [y/N] y