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[EOL/EOE] [ScreenOS] 'failed to get clock through NTP' on backup unit

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Article ID: KB6147 KB Last Updated: 18 Mar 2021Version: 5.0
Summary:
Note: A product listed in this article has either reached hardware End of Life (EOL) OR software End of Engineering (EOE). 
Refer to End of Life Products & Milestones for the EOL, EOE, and End of Support (EOS) dates.

What is causing the error message 'failed to get clock through NTP' on the backup unit
Symptoms:
The 'get log event' on the backup unit shows 'failed to get clock though NTP'

In ScreenOS version 4.0.1 or above, the command 'set ntp no-ha-sync' turns off the clock synchronization between the primary and backup device

Solution:

In ScreenOS 3.1.0, NTP update is only performed on the primary device.

In ScreenOS 4.0.x, with NSRPv2, both primary & backup units are able to do NTP update. The manage-ip must be set on the outgoing interface (separate from the physical IP address).  The primary unit will synchronize the system clock to the backup whenever it gets a NTP update.

 

Modification History:
2021-03-18: Article marked as EOL/EOE.
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