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Douglas Burrell
Asked: 2019-03-15 05:45:25 +0800 CST

NTP service is unable to connect to ntp.ubuntu.com on ubuntu 18.04

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I've been finding that my device recently has been unable to connect to ntp.ubuntu.com with its systemd-timesyncd service.

Mar 15 00:31:52 l157 systemd-timesyncd[673]: Timed out waiting for reply from 91.189.89.199:123 (ntp.ubuntu.com).
Mar 15 00:32:02 l157 systemd-timesyncd[673]: Timed out waiting for reply from 91.189.89.198:123 (ntp.ubuntu.com).
Mar 15 00:32:12 l157 systemd-timesyncd[673]: Timed out waiting for reply from 91.189.91.157:123 (ntp.ubuntu.com).
Mar 15 00:32:23 l157 systemd-timesyncd[673]: Timed out waiting for reply from 91.189.94.4:123 (ntp.ubuntu.com).

Is ntp.ubuntu.com a viable NTP site to use for this or should I be using another NTP site?

ntp systemd-timesyncd

1 Answers

  1. I had the same problem when connecting to the internet via eduroam. The problem goes away when connecting via another network. It seems that the eduroam administrators are just a bit too careful with their firewall configuration or something like that.

    As long as you occasionally connect to a network other than eduroam it shouldn't be a problem and your time should always stay in sync.

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