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

Last Modified: Jul 23, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP ASM(all modules)

Known Affected Versions:
13.1.0,,,,,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 16.0.0,, 16.0.1,,, 16.1.0

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