Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP APM
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, 11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10
Fixed In:
11.6.0
Opened: Mar 21, 2014 Severity: 3-Major Related Article:
K15913
The RBA plugin sends a reset when attempting to access a secondary authentication domain: /var/log/ltm: Internal error (APM::RBA requested abort (trans end error))
Multidomain SSO is effectively unusable, since you can only access the primary domain.
Any configuration of LTM+APM multidomain SSO seems to be affected. Forward proxy deployments, such as Secure Web Gateway, do not appear to be affected.
There is no workaround at this time. Single-domain authentication still works.
Multidomain SSO no longer resets on secondary authentication domains.