On 10-12-2019 05:03, Hal Murray wrote: > >> Also: NTSc: certificate invalid: 19=>self signed certificate in certificate >> chain > >> When I try nts as a client... > > Which host? > The first one in the howto: Public NTP servers supporting NTS: server time.cloudflare.com:1234 nts # TLS1.3 only Kind regards, Udo