Bug ID 1972437: APM VPN via browser on Windows may fail to connect if Network Adapters are added/removed during Access Policy execution

Last Modified: Sep 05, 2025

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

Known Affected Versions:
7.2.5.2, 7.2.5.3, 7.2.6

Opened: Jun 27, 2025

Severity: 3-Major

Symptoms

Windows users see "Navigation to the webpage was canceled" in browser's window after clicking on Network Access resource on the webtop. F5 RST cause code will show: Machine Hash is not Valid

Impact

Users will not be able to connect to the VPN

Conditions

- Windows client accessing APM VPN using a browser - Endpoint checks implemented in the Access Policy - Network Adapters removed/added during Access Policy execution

Workaround

-- Attempt to connect a second time. -- Alternatively, use the BIG-IP Edge Client to connect to the VPN.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips