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© American Time
AllSync IQ Installation Manual
Glossary
Appendix
Troubleshooting
Installation
Intr
oduction
Appendix A: Ethernet Timekeeping
NIST Internet Time Servers
Using the AllSync IQ Master as a Time Server
The AllSync IQ Master with Ethernet option can be used as a time server supporting the SNTP and Daytime protocols and can
be used to synchronize computers or other devices via the Ethernet.
To set up your computer or other device to synchronize to the AllSync IQ, simply enter the IP address of the AllSync IQ master
as the time server address for the computer or device.
In Windows XP:
1. Right-click your clock and then click
Adjust Date/Time
.
2. Click the
Internet Time
tab. Click the
Server
down arrow, and then enter the IP address of the AllSync IQ master you wish
to synchronize this computer to (example: 192.168.1.200).
3. Click
Update Now
. Windows XP will connect to the AllSync IQ master and set the computer's clock.
In Windows Vista/Windows 7:
1. Right-click your clock and then click
Adjust Date/Time
.
2. Click the
Internet Time
tab, and then click
Change Settings
.
3. Click
Automatically synchronize with an Internet time server
, enter the IP address of the AllSync IQ master you wish to
synchronize this computer to (example: 192.168.1.200), and then click OK.
In Windows 10:
1. Open the
Control Panel
(icons view), and click on the
Date and Time
icon.
2. Click on the
Internet Time
tab, and click on the
Change Settings
button.
3. If prompted by UAC, click/tap on
Yes
.
4. Check the
Synchronize with an Internet time server
box, select a time server, and click on
Update now
.
5. Select server box and enter AllSync IQ master you wish to synchronize this computer to (example: 192.168.1.200), and
then click
OK
.
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Important Notes:
• Setting up your computer to synchronize to the AllSync IQ master via Ethernet does not account for time zone &
Daylight Saving Time settings, which must be properly set on the computer (they are not transferred via Ethernet).
• The computer or other device being synchronized to the AllSync IQ master must be on the same network as the
AllSync IQ master, or have access to it through a firewall (port 123 open for SNTP and port 13 open for Daytime Protocol).
• If your computer is on a domain, it is set up to get the time from the domain controller and you will not be able to
perform the above tasks. Domain controllers using the Windows Time Service can be set up by your network administrator
to synchronize directly to time servers on the Internet or to the AllSync IQ master. Contact American Time Technical
Support at 800-328-8996 with any questions.
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Note:
Please reference http:/tf.nist.gov/tf-cgi/servrs.cgi for the latest NIST Internet Time servers list, which includes the
status of each server.
