Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

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Maria123
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Dec 06, 2019

Diagnose the LB_FAILED Event

FB_FAILED is occurring even if all the server nodes are available. In the iRule logged the [event info] but noting is coming.   Is there any way to identify or diagnose the reason for this?   ...