NTP unsynced from show command but show clock says otherwise

[Norix S]

Hi Experts!

I have bumped into a somewhat bizarre state of our ASA firewall, 

NTP unsynced from show command but show clock says otherwise.

could this be a bug issue?

hope that someone can shed light on this.

Nox S.

[balaji.bandi]

Can you post :

show ntp associations

show ntp associations detail

show clock

show version

[Norix S]

FW# show ver

Cisco Adaptive Security Appliance Software Version 9.8(2)20

FW# show clock detail
04:44:12.867 GMT Tue Dec 6 2021
Time source is NTP
Summer time starts 02:00:00 GMT Sun Mar 13 2025
Summer time ends 02:00:00 GMT Sun Nov 6 2025

FW# show ntp associations
address ref clock st when poll reach delay offset disp
~1.1.1.1 0.0.0.0 15 - 64 0 0.0 0.00 15000.
~2.2.2.2 0.0.0.0 15 - 64 0 0.0 0.00 15000.
~3.3.3.3 0.0.0.0 15 - 64 0 0.0 0.00 15000.
* master (synced), # master (unsynced), + selected, - candidate, ~ configured

[balaji.bandi]

Looks you have configured clock, the NTP servers (they are valid ?) - i do not see any association

From where you got this IP address 1.1.1.1 / 2.2.2.2 / 3.3.3.3 (is this replaced here due to post ? or configured as same)

check reference, required valid NTP Server to associate.

https://www.networkstraining.com/how-to-configure-clock-and-ntp-on-cisco-asa-5500/

[Norix S]

Yes, I have changed IPs for confidentiality, basically, there are 3 NTP servers. As you say it is the clock setting that is fired up not NTP?

but why show clock shown as:

FW# show clock detail
04:44:12.867 GMT Tue Dec 6 2021
Time source is NTP
Summer time starts 02:00:00 GMT Sun Mar 13 2025
Summer time ends 02:00:00 GMT Sun Nov 6 2025