Bug ID 1890997: TCP connection stall in TMM conn table with ASM policy and no websocket profile

Last Modified: Jun 28, 2025

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

Known Affected Versions:
16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6

Opened: Mar 28, 2025

Severity: 3-Major

Symptoms

Virtual server configured with and ASM policy but no websocket profile. After a 101 response and the TCP 4-way teardown, the connection isn't removed from TMM connection table.

Impact

Connection is not removed from the TMM connection table

Conditions

Virtual server with ASM policy, no websocket profile

Workaround

Add a websocket profile to the virtual server configuration.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips