NTP Time Synchronization Issue on Start9 Server One. Seeking Assistance

General
1

Dear Start9 Support Team and Advanced Users,
I am experiencing persistent time synchronization issues with my Start9 Server One running StartOS (based on Debian 12). Despite multiple attemps the system clock fails to synchronize with NTP servers.
Current Status:
timedatectl shows:" Systen synchronized: no"
timedatectl shows:" NTP service: active"
Local timezone: Europe/Madrid (correctly set)
Network connectivity: confirmed working (HTTP/DNS funcional)
Troubleshooting Steps Already Performed:

  1. Verified network connectivity-confirmed working.
  2. Checked DNS resolution-functional.
  3. Tried multiple NTP server configurations:
    pool.ntp.org/time.nist.gov/debian.pool.ntp.org (original, times out)
    European NTP pools such as europe.pool.ntp.org
    and various fallback configurations.
    Specific Questions:
  4. what are the recomended NTP servers for Start9 systems in Spain?
  5. Is there a specific NTP configuration that works best with StartOS?
  6. Could there be firewall restrictions blocking NTP traffic (port 123 UDP)?
  7. Are there Start9-specific time synchronization methods I should be using?
    Current timesyncd.conf:
    [Time]
    NTP=pool.ntp.org
    FallbackNTP=0.debian.pool.ntp.org (idem 1,2,3)
    System Details:
    Network: Direct router connection, static IP
    Location: Spain
    The service attempts to contact servers but consistenly times out waiting for replies. I would appreciate any guidance on the proper NTP configuration or alternative time synchronization methods for Start9 systems.
    Thank you for your assistance.
2

StartOS should connect without trouble to NTP servers right out of the box without you having to modify anything on your server.

This is usually a case of a router, firewall or ISP configuration which is blocking these connections in some way.

Here is a very detailed post from our very own @Homer, which clearly explains steps you can follow to find a solution for your case.

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