Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11, 11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8
Fixed In:
12.0.0, 11.6.1, 11.5.4
Opened: Dec 10, 2014 Severity: 3-Major Related Article:
K15116582
iApps are unable to reconfigure pools that have monitors associated with them.
Monitor change does not occur. GUI or tmsh might post an error similar to the following: Monitor rule not found.
Using tmsh or iApps in the GUI to re-configure the pool monitor (for example, changing the monitor from 'http' to 'none').
None.
Users can now remove a monitor from a pool / set it to 'none' through tmsh or a GUI iApp transaction.