Bug ID 435542: Re-installation of VPN driver on Windows 8.1 requires system reboot

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.0, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 12.0.0 HF3, 11.6.1, 11.5.4 HF2

Opened: Oct 28, 2013

Severity: 3-Major


In some cases re-installation of the VPN driver on Windows 8.1 requires a system reboot.


Without reboot the user can be presented with this error: "The modem (or other connecting device) is already in use or is not configured properly."


This occurs on Windows 8.1



Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips