Bug ID 431149: APM config snapshot disappears and users see "Access Policy configuration has changed on gateway"

Last Modified: Sep 13, 2023

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

Known Affected Versions:
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 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0, 11.6.0 HF5, 11.5.3, 11.4.1 HF9

Opened: Sep 19, 2013

Severity: 3-Major

Related Article: K17217


In scenarios where there are multiple slots on a chassis in an HA pair (in both vCMP and chassis only mode), the error "Access Policy configuration has changed on gateway" might be displayed when a user connects to a virtual server.


Customer would see following message when they connect to virtual server "Access Policy configuration has changed on gateway"


It can occur in conditions when : - right after when the whole chassis is rebooted - secondary/slave slot's tmm cores. - disabling a slot on chassis


To work around the problem, type the command "bigstart restart apd" on the primary slot.

Fix Information

The issue is fixed by having the primary blade of the chassis/vCMP to recreate config snapshots if a secondary blade transitions from online to offline and vice versa.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips