Set System Date And Time; Using Ntp Is Recommended For Greater Accuracy; Set System Date And Time Manually - Digi TransPort WR11 User Manual

Configuring system settings

Set system date and time

The router keeps track of calendar time using an internal real time clock (RTC) device. The router uses
this clock to time/date stamp logfiles. The router uses the 24-hour clock.
Because maintaining an accurate system clock can be important for routers on the Internet, you can
configure the router use NTP and SNTP services to maintain the internal system time, in addition to
setting the system date and time manually.

Using NTP is recommended for greater accuracy

NTP is much more accurate than SNTP, with an accuracy of 200 microseconds (1/5000 second) can be
achieved. The NTP functionality is in accordance with RFC1305. You can configure up to 4 remote
peers. All the peers are polled at intervals, and the best peer is selected for using as the time source.
Configure SNTP before using NTP. The router calculates the accuracy of the NTP time servers over a
period of time, up to 2 hours. Once the drift compensation is calculated, the router uses NTP client.
The drift compensation value is stored in NVRAM and written to the config.da0 file. If the router loses
power or is rebooted, it does not need to re-calculate the accuracy of the NTP servers again. The
compensation value is constantly monitored to make sure it remains correct.
Note Using SNTP achieves an accuracy of around 1 second. Using NTP achieves an accuracy of 200
microsecond. Not all models support NTP; this option only appears for models that do.

Set system date and time manually

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Web
1. Go to Configuration > System > Date and Time.
2. Set date and time parameters:
Do not auto-set the system time
If enabled, allows you to set the system time manually. This is the system default, and this
radio button is selected when the router is new, unless a different default configuration has
Digi TransPort® Routers User Guide
Set system date and time
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