Bug ID 759993: 'License verification failed' errors occur when changing license

Last Modified: Jul 12, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Fixed In:

Opened: Feb 28, 2019

Severity: 3-Major


The /var/log/ltm contains license processing errors upon license validation failure whenever a significant license event happens (such as a license change). However the system 'corrects' itself if a valid license exists, so no further log messages will be produced.


When a license change occurs, the system logs messages similar to the following: -- err mcpd[11745]: 01180010:3: [license processing][error]: license verification failed. -- err mcpd[11745]: 01180010:3: [license processing][error]: invalid input for license parsing. If you have a valid license, there is no functional impact to the product, and you can safely ignore these messages.


Whenever a significant license event happens, the internal state wipes the previous license representation, which causes some modules to report the license has failed verification.



Fix Information

The license verification log message requires no intervention and should be taken only as a serious issue if you have a valid license and the device never goes active, with this error message going into the logs repeatedly.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips