NTP Subsystem Timeout (Time drift / UDP 123)

Discover how to troubleshoot NTP subsystem timeouts and address time drift issues over UDP on port 123 for better system synchronisation.

Table of Contents

What does a NTP Subsystem Timeout mean?

What does a NTP Subsystem Timeout mean?

Network Time Protocol (NTP) operates on UDP Port 123. It ensures that the clock on your device is perfectly synchronized with global time servers. Secure connections (HTTPS/TLS) will fail if your computer's clock is too far out of sync with our servers servers.

How to fix it:

  1. Unblock UDP Port 123: Check your firewall to ensure outbound traffic on UDP Port 123 is allowed. Some strict corporate firewalls block this port by default.
     
  2. Sync Windows Time: Right-click the clock in your Windows taskbar, select "Adjust date/time", and click the "Sync now" button to force an update.
     
  3. Check Domain Policies: If your computer is managed by a corporate IT department (Active Directory), ensure their domain controller is successfully pushing the correct time to your machine.