Bug ID 932781: VPN fails to establish on Windows systems where 'Secure Boot' is enabled.

Last Modified: Jul 23, 2021

Bug Tracker

Affected Product:  See more info
APM-Clients TMOS(all modules)

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 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,,

Opened: Jul 31, 2020
Severity: 3-Major
Related AskF5 Article:


VPN fails to connect.


End user clients cannot establish a VPN connection.


-- 'Secure Boot' is enabled on Microsoft Windows systems. -- Running Windows 10. -- IP Filtering Engine is enables in the Network Access settings. -- Connecting to VPN.


There are two workarounds for this issue: -- Disable 'Secure Boot' on Windows systems. Note: Some systems running Windows 10 have a feature called 'Secure Boot' enabled by default to ensure that client computers boot using only software trusted by the computer. -- Disable IP Filtering Engine setting in the Network Access settings.

Fix Information


Behavior Change