Bug ID 572893: error "The modem (or other connecting device) is already in use or is not configured properly"

Last Modified: Oct 07, 2023

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

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
13.0.0, 12.1.0, 11.5.4 HF2

Opened: Feb 10, 2016

Severity: 3-Major

Symptoms

Clients get an error: error "The modem (or other connecting device) is already in use or is not configured properly"

Impact

Clients will be unable to connect to the VPN

Conditions

The exact reproduction steps are not known, but it was seen to occur on certain Windows 10 clients where the access components were removed and login was attempted afterward.

Workaround

Rebooting might correct the issue on the client machine.

Fix Information

Network Access will no longer fail on client machines that first uninstall the components and then attempt to reconnect.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips