Bug ID 2046501: NTP CLI/webUI displays "ntp api, the server or underlying service is unreachable"

Last Modified: Aug 19, 2026

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

Fixed In:
F5OS v2.0.0

Opened: Aug 28, 2025

Severity: 3-Major

Symptoms

1. Newly configured DNS IPs are not used in tcpdump-platform-agent container. 2. show system ntp command is unresponsive.

Impact

1. The "ping" command is unable to use the recently configured DNS IPs 2. Timeout occurs when you execute "show system ntp".

Conditions

1. New DNS IPs are 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