Bug ID 1788153: Under Attack: Server IP Attack detected. Please move to a secure network.

Last Modified: Sep 21, 2026

Affected Product(s):
APM-Clients TMOS(all modules)

Fixed In:
7.2.7.1, 7.2.7.1, 7.2.7.1

Opened: Jan 23, 2025

Severity: 3-Major

Symptoms

APM users report seeing an error: “Under Attack: Server IP Attack detected. Please move to a secure network.”

Impact

An unhelpful error message is displayed to end users.

Conditions

APM users attempting to connect

Workaround

None

Fix Information

Changed the message that is displayed: "Detected VPN Server IP Address mismatch. This could be due to misconfiguration on BIG-IP or insecure local network. Please contact Administrator.”

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips