IncusOS - Operation Center: Public NTP server unable to sync on startup

Hallo :waving_hand:

Currently setting up a VM on an IncusOS host to run Operation Center. Everything works just fine except the time synchronization. If I configure a public NTP server using a FQND (time.nrc.ca) I am getting the following WARNING.

No issue if I use an internal IP as the NTP server.

Relevant configuration is as follow:

 dns:
    domain: infra.ipster.haus
    hostname: oc
    nameservers:
      - 10.21.41.1
    search_domains:
      - haus
    dns_over_tls: true
  time:
    ntp_servers:
      - time.nrc.ca
    timezone: UTC

There is no DNS request at all coming in on 853 for a DNS resolution.

The VM is able to communicate with outside since it downloads the images and such.

Anything I should look for ?

Here are some part of the logs:

Sep 12, 03:34:15 p.m. oc.infra.ipster.haus systemd-networkd[814]: _i10666a083692: Link UP
Sep 12, 03:34:15 p.m. oc.infra.ipster.haus systemd-networkd[814]: _i10666a083692: Gained carrier
Sep 12, 03:34:15 p.m. oc.infra.ipster.haus systemd-networkd[814]: _venp5s0: Gained carrier
Sep 12, 03:34:15 p.m. oc.infra.ipster.haus systemd-networkd[814]: enp5s0: Gained carrier
Sep 12, 03:34:15 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:15 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:15 p.m. oc.infra.ipster.haus systemd[1]: Reached target time-set.target - System Time Set.
Sep 12, 03:34:16 p.m. oc.infra.ipster.haus systemd-networkd[814]: _venp5s0: Gained IPv6LL
Sep 12, 03:34:17 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus audit: BPF prog-id=61 op=UNLOAD
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus audit: BPF prog-id=62 op=LOAD
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:20 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus audit: BPF prog-id=62 op=UNLOAD
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus audit: BPF prog-id=63 op=LOAD
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:23 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus audit: BPF prog-id=63 op=UNLOAD
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus audit: BPF prog-id=64 op=LOAD
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:25 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus audit: BPF prog-id=64 op=UNLOAD
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus audit: BPF prog-id=65 op=LOAD
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:28 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus audit: BPF prog-id=65 op=UNLOAD
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus audit: BPF prog-id=66 op=LOAD
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:31 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus audit: BPF prog-id=66 op=UNLOAD
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus audit: BPF prog-id=67 op=LOAD
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:33 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus audit: BPF prog-id=67 op=UNLOAD
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus audit: BPF prog-id=68 op=LOAD
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:36 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus audit: BPF prog-id=68 op=UNLOAD
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus audit: BPF prog-id=69 op=LOAD
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:38 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus audit: BPF prog-id=69 op=UNLOAD
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus audit: BPF prog-id=70 op=LOAD
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:41 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:42 p.m. oc.infra.ipster.haus systemd[1]: systemd-timedated.service: Deactivated successfully.
Sep 12, 03:34:42 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timedated comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:42 p.m. oc.infra.ipster.haus audit: BPF prog-id=49 op=UNLOAD
Sep 12, 03:34:42 p.m. oc.infra.ipster.haus audit: BPF prog-id=48 op=UNLOAD
Sep 12, 03:34:42 p.m. oc.infra.ipster.haus audit: BPF prog-id=47 op=UNLOAD
Sep 12, 03:34:42 p.m. oc.infra.ipster.haus systemd[1]: systemd-hostnamed.service: Deactivated successfully.
Sep 12, 03:34:42 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-hostnamed comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:42 p.m. oc.infra.ipster.haus audit: BPF prog-id=50 op=UNLOAD
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus audit: BPF prog-id=70 op=UNLOAD
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus audit: BPF prog-id=71 op=LOAD
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=84 a0=5 a1=7fff2dceca80 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 12, 03:34:44 p.m. oc.infra.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 12, 03:34:45 p.m. oc.infra.ipster.haus incus-osd[651]: 2026-09-12 19:34:45 WARN systemd-timesyncd failed to perform NTP synchronization, system time may be incorrect

Cheers !

Did you try specifying the NTP server by IP address to see if it’s some issue with DNS availability at that stage of the boot?

Yes, same behavior.

It that matter, when the host up, changing network parameters invoke a network reload and throws the same error.

FWIW, network is statically configured (IPv4) with SLAAC for IPv6.
Therefore, routes (default) is created once ip address is assigned.

Hopefully incus-osd/network: Stop restarting systemd-timesyncd every 2.5s by stgraber · Pull Request #1360 · lxc/incus-os · GitHub will help

Just updated to 202609150130 and still the same

Sep 15, 05:44:15 p.m. oc.ipster.haus systemd-networkd[800]: _venp5s0: Configuring with /run/systemd/network/20-_venp5s0.network.
Sep 15, 05:44:15 p.m. oc.ipster.haus systemd-networkd[800]: enp5s0: Link UP
Sep 15, 05:44:15 p.m. oc.ipster.haus systemd-networkd[800]: _venp5s0: Link UP
Sep 15, 05:44:15 p.m. oc.ipster.haus systemd-networkd[800]: enp5s0: Gained carrier
Sep 15, 05:44:15 p.m. oc.ipster.haus systemd-networkd[800]: _i10666a083692: Link UP
Sep 15, 05:44:15 p.m. oc.ipster.haus systemd-networkd[800]: _i10666a083692: Gained carrier
Sep 15, 05:44:15 p.m. oc.ipster.haus kernel: enp5s0: port 2(_i10666a083692) entered blocking state
Sep 15, 05:44:15 p.m. oc.ipster.haus kernel: enp5s0: port 2(_i10666a083692) entered forwarding state
Sep 15, 05:44:15 p.m. oc.ipster.haus systemd-networkd[800]: _venp5s0: Gained carrier
Sep 15, 05:44:15 p.m. oc.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 15, 05:44:15 p.m. oc.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 15, 05:44:15 p.m. oc.ipster.haus systemd[1]: Reached target time-set.target - System Time Set.
Sep 15, 05:44:17 p.m. oc.ipster.haus systemd-networkd[800]: _venp5s0: Gained IPv6LL
Sep 15, 05:44:17 p.m. oc.ipster.haus systemd-timesyncd[817]: Network configuration changed, trying to establish connection.
Sep 15, 05:44:18 p.m. oc.ipster.haus systemd-timesyncd[817]: Network configuration changed, trying to establish connection.
Sep 15, 05:44:20 p.m. oc.ipster.haus systemd-timesyncd[817]: Network configuration changed, trying to establish connection.
Sep 15, 05:44:31 p.m. oc.ipster.haus systemd[1]: Stopping systemd-timesyncd.service - Network Time Synchronization...
Sep 15, 05:44:31 p.m. oc.ipster.haus systemd[1]: systemd-timesyncd.service: Deactivated successfully.
Sep 15, 05:44:31 p.m. oc.ipster.haus systemd[1]: Stopped systemd-timesyncd.service - Network Time Synchronization.
Sep 15, 05:44:31 p.m. oc.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 15, 05:44:31 p.m. oc.ipster.haus audit: BPF prog-id=61 op=UNLOAD
Sep 15, 05:44:31 p.m. oc.ipster.haus audit: BPF prog-id=62 op=LOAD
Sep 15, 05:44:31 p.m. oc.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=321 success=yes exit=117 a0=5 a1=7fffeb8bfec0 a2=98 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 15, 05:44:31 p.m. oc.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 15, 05:44:31 p.m. oc.ipster.haus systemd[1]: Starting systemd-timesyncd.service - Network Time Synchronization...
Sep 15, 05:44:31 p.m. oc.ipster.haus systemd[1]: Started systemd-timesyncd.service - Network Time Synchronization.
Sep 15, 05:44:31 p.m. oc.ipster.haus audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timesyncd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 15, 05:44:42 p.m. oc.ipster.haus systemd[1]: systemd-timedated.service: Deactivated successfully.
Sep 15, 05:44:42 p.m. oc.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-timedated comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 15, 05:44:42 p.m. oc.ipster.haus audit: BPF prog-id=47 op=UNLOAD
Sep 15, 05:44:42 p.m. oc.ipster.haus audit: BPF prog-id=49 op=UNLOAD
Sep 15, 05:44:42 p.m. oc.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=3 success=yes exit=0 a0=54 a1=0 a2=0 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 15, 05:44:42 p.m. oc.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 15, 05:44:42 p.m. oc.ipster.haus audit: BPF prog-id=48 op=UNLOAD
Sep 15, 05:44:42 p.m. oc.ipster.haus audit[1]: SYSCALL arch=c000003e syscall=3 success=yes exit=0 a0=53 a1=0 a2=0 a3=0 items=0 ppid=0 pid=1 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd" exe="/usr/lib/systemd/systemd" subj=unconfined key=(null)
Sep 15, 05:44:42 p.m. oc.ipster.haus audit: PROCTITLE proctitle="/init"
Sep 15, 05:44:42 p.m. oc.ipster.haus systemd[1]: systemd-hostnamed.service: Deactivated successfully.
Sep 15, 05:44:42 p.m. oc.ipster.haus audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=unconfined msg='unit=systemd-hostnamed comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 15, 05:44:42 p.m. oc.ipster.haus audit: BPF prog-id=50 op=UNLOAD
Sep 15, 05:44:45 p.m. oc.ipster.haus incus-osd[630]: 2026-09-15 21:44:45 WARN systemd-timesyncd failed to perform NTP synchronization, system time may be incorrect

The ntp server time.nrc.ca seems to work fine in my Operation Center:

[2026/09/17 13:58:24 CEST] systemd: Starting systemd-timesyncd.service - Network Time Synchronization...
[2026/09/17 13:58:25 CEST] systemd: Started systemd-timesyncd.service - Network Time Synchronization.
[2026/09/17 13:58:24 CEST] systemd-timesyncd: Contacted time server 132.246.11.227:123 (time.nrc.ca).
[2026/09/17 13:58:24 CEST] systemd-timesyncd: Initial clock synchronization to Thu 2026-09-17 13:58:24.672620 CEST.

However, I am not using any custom DNS settings. The DNS is provided by DHCP from the Incus host on which Operation Center runs (as a virtual machine):

config:
  interfaces:
    - addresses:
        - dhcp4
      hwaddr: 10:66:6a:e8:82:02
      name: enp5s0
  time:
    ntp_servers:
      - time.nrc.ca
    timezone: Europe/Berlin

OK, I disabled DHCP and configured static IP. I added the basic dns section:

  dns:
    domain: ""
    hostname: ""
    nameservers:
      - 1.1.1.1

The ntp server still resolves fine:

[2026/09/17 14:46:06 CEST] systemd: Starting systemd-timesyncd.service - Network Time Synchronization...
[2026/09/17 14:46:06 CEST] systemd: Started systemd-timesyncd.service - Network Time Synchronization.
[2026/09/17 14:46:05 CEST] systemd-timesyncd: Contacted time server 132.246.11.227:123 (time.nrc.ca).
[2026/09/17 14:46:05 CEST] systemd-timesyncd: Initial clock synchronization to Thu 2026-09-17 14:46:05.818093 CEST.

I then removed the dns section to check that I get the NTP warning:

[2026/09/17 14:50:23 CEST] systemd: Started incus-osd.service - IncusOS - management daemon.
[2026/09/17 14:50:29 CEST] incus-osd: 2026-09-17 14:50:29 INFO System is starting up machine-id=xxxxxxxxxxxxxxxxxxxxx mode=production version=202609150130
[2026/09/17 14:50:30 CEST] incus-osd: 2026-09-17 14:50:30 INFO Bringing up the network
[2026/09/17 14:51:05 CEST] incus-osd: 2026-09-17 14:51:05 WARN systemd-timesyncd failed to perform NTP synchronization, system time may be incorrect
[2026/09/17 14:51:08 CEST] incus-osd: 2026-09-17 14:51:08 INFO Bringing up the local storage
[2026/09/17 14:51:08 CEST] incus-osd: 2026-09-17 14:51:08 INFO Starting application name=operations-center version=0.9.0 [202609150130]
[2026/09/17 14:51:08 CEST] incus-osd: 2026-09-17 14:51:08 INFO Application TLS certificate fingerprint fingerprint=xxxxxxxxxxxxxxxxxxxxx name=operations-center
[2026/09/17 14:51:09 CEST] incus-osd: 2026-09-17 14:51:09 INFO System is ready version=202609150130

After every change I flushed DNS cache and rebooted the Operation Center.

Ok, my bad. There was a routing issue which I don’t fully understand since updates were working just fine.
Anyway, it is working !