Bug ID 1394205: NTP CLI/webUI displays "ntp api, the server or underlying service is unreachable"

Last Modified: Oct 19, 2025

Affected Product(s):
F5OS F5OS-A(all modules)

Known Affected Versions:
F5OS-A 1.5.0, F5OS-A 1.5.1, F5OS-A 1.5.2, F5OS-A 1.5.3, F5OS-A 1.5.4

Fixed In:
F5OS-A 1.8.3

Opened: Nov 06, 2023

Severity: 3-Major

Symptoms

1. Newly configured DNS IPs are not used for FQDN resolution. 2. show system ntp command is unresponsive.

Impact

1. The "ping" command unable to use recent configured DNP IPs 2. Timeout occurs when you execute "show system ntp".

Conditions

1. The file /etc/resolv.conf is not correctly mounted or configured inside the container. 2. Invalid or unresponsive DNS IPs configured.

Workaround

None

Fix Information

1. Ping now correctly uses newly configured DNS servers. 2. The show system ntp command responds faster.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips