3 Troubleshooting the Network Time Protocol (NTP) service

The Network Time Protocol (NTP) service may in some cases malfunction, or even stop.

Context

The EK80 installation program adds a firewall rule to allow for NTP communication. If the EK80 issues messages related to missing time synchronization between a motion reference unit (MRU) and/or ADCP hardware synchronization, the problem is most likely related to the firewall.

Procedure

Check the firewall settings on the Processor Unit.

One reason for NTP synchronisation problems may be a firewall or port filter that inhibit the communication. Check the firewall settings in the Control Panel.

Adjust the firewall settings.

Check the communication between the EK80 NTP server and the client(s).

Tip

You can use Wireshark (https://www.wireshark.org). This is a network protocol analyser. Wireshark allows you to see your network activities at a microscopic level.