Use this information to understand your options when problems related to SNTP arise. This topic describes problems that your system might encounter when you adjust time using SNTP.
Log SNTP activity can help you to identify problems with the server or client.
The following topics identify problems you might encounter and provide ways to recover:
If you are using the SNTP client through a firewall, the firewall configuration might need to be updated to allow the passing of UDP packets on port 123.
If you have selected Server must be synchronized before valid time is served on the Server page of SNTP properties, you must have the iSeries™ server configured as an SNTP client connected to an active time server before the server can respond to client polls.
If SNTP is not making correct time adjustments or if you want to start a new time adjustment, you need to ensure that SNTP is stopped properly.
For more information on troubleshooting problems related to time management, see Time management troubleshooting.
If the problem is outside of the SNTP topic, see Troubleshooting to learn about the options you have regarding general problems with the iSeries server. For additional help, see Service and support.