Bug ID 710870: Temporary browser challenge failure after installing older ASU

Last Modified: Jul 12, 2023

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:

Fixed In:

Opened: Mar 19, 2018

Severity: 2-Critical


After installing an older ASM Signature Update (ASU) may cause the browser challenge to fail for the first few minutes after provisioning ASM.


Browsers remain on whitepage after receiving a browser challenge. Note: The problem should go away after 10-to-15 minutes of provisioning ASM, when more versions of JavaScript are generated.


-- Using BIG-IP version -- Installing an ASU from before April 2018.


Install the latest ASU.

Fix Information

The browser challenges will succeed even after installing an older ASU.

Behavior Change

Guides & references

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