Last Modified: Jan 07, 2026
Affected Product(s):
BIG-IP LTM, vCMP
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
Fixed In:
11.6.0, 11.5.1 HF6
Opened: Apr 30, 2014 Severity: 3-Major Related Article:
K15297
The Include Cluster option on the HA properties page cannot be disabled after being enabled.
The included cluster cannot be removed using the GUI.
This occurs in a clustered configuration.
Use tmsh to remove the cluster from the HA group.
You can now disable the Include Cluster option using the GUI.