The db variable Tmm.HTTP.TCL.Validation is enabled by default. ... This db variable should be disabled when APM is provisioned/enabled, and when ACCESS::restrict_irule_event is disabled and HTTP_RESPONSE_RELEASE events are detected with the assigned iRules. ... Impact ... TCP reset triggered when it should not. ... With respect to the specific condition described, the system should post the logon page. ... Conditions ... Steps to Reproduce: 1. ... Fresh install of APM 2. ... Define the following iRule in the virtual server. ... when CLIENT_ACCEPTED { ACCESS::restrict_irule_events disable } when HTTP_REQUEST { set u [ HTTP::uri ] log local0. ... "XXX: [ HTTP::uri ]" } when HTTP_RESPONSE_RELEASE { log local0.