Bug ID 464504: Status LED blinking Amber on BIG-IP 10000-series appliance

Last Modified: Nov 22, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP All(all modules)

Known Affected Versions:
11.3.0, 11.4.0, 11.4.1

Fixed In:
11.4.1 HF6

Opened: May 28, 2014
Severity: 3-Major
Related Article:


The LCD display may stop updating and the Status LED may begin blinking Amber on BIG-IP 10000-series appliances.


When this condition occurs, the front-panel LCD display will not display the current BIG-IP host status, and the Status LED will blink Amber. There is no impact to BIG-IP host operations, and no disruption to traffic.


The Status LED will blink Amber if the LED/LCD module does not receive updates from the BIG-IP host for 3 minutes or longer. This condition may occur if data transfers between the BIG-IP host and the LED/LCD module over the connecting USB bus becomes stalled.


This condition can be cleared by pressing one of the buttons on the LCD display to navigate the LCD menus. The button-press event generates USB traffic which will trigger recovery from the USB stalled transfer condition.

Fix Information

Auto-recovery from a USB stalled-transfer condition has been implemented, which prevents the Status LED from blinking Amber on BIG-IP 10000-series appliances.

Behavior Change