Masterclock MDN User Manual – 2013.05.07
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Possible reasons and solutions:
1. Verify that the NTP server(s) specified are reachable,
communicating, and are not flagging their reported
time as invalid. Use a PC-based SNTP client application
to verify the server(s) if necessary.
2. Verify that a gateway/router/firewall has been
configured that allows the device to communicate
outside of its local network.
3. Verify that the IP address configured for the device is
correct. If you manually enter or DHCP assigns an IP
address that already exists on the network, this will
create an IP address conflict. The device will reset its
address to one within the link-local address space
“169.254.xxx.xxx”. If you see that the IP address starts
with “169.254”, obtain a new IP address for the device
or resolve the duplication. Consult your network
administrator for a range of available IP addresses to
avoid IP address conflicts.
4. If using DHCP mode, consult your network
administrator to ensure that your DHCP server is
configured to automatically supply the NTP server
address before selecting the
“Use NTP server(s) address
provided by DHCP server”
checkbox. If the DHCP server
cannot automatically supply the NTP server address(s),
then deselect this option and enter the NTP server(s)
address(s) manually.
5. Verify that the device is connected to the Ethernet
LAN.
6. Verify that all network cables, hubs, etc. are in proper
working order. Be sure that Ethernet crossover “patch
cables” are not being used where inappropriate.
CLOCK IS NOT DISPLAYING
THE CORRECT LOCAL TIME OR DATE
Clock did not properly negotiate the DST to standard time
(or vice-versa) transition
Possible reasons and solutions:
1. Time Zone offset has been configured incorrectly.
Provide the correct Time Zone configuration.
2. DST has been configured incorrectly. This is configured
separately from the Time Zone configuration. Provide
the correct DST configuration by either manually
entering the DST rules or selecting the single button
configuration under WinDiscovery. If using the
convenient single-button configuration for [US/Canada]
or [EU DST], be certain to use the latest version of
WinDiscovery and apply it for each device. If using the
[Current Windows Setting] button to apply the DST
rules, verify that the rules on the computer are correct.
