License Key Not Available Wincc Logging For Runtime Advanced May 2026

Siemens uses the Automation License Manager (ALM). Common issues include:

In ALM, select license → Properties → Check:

On the target PC (where Runtime Advanced runs):

If you see the license but it is grayed out or shows "Defective," skip to Step 4. license key not available wincc logging for runtime advanced

If you do not see the license at all, proceed to Step 3.

Licenses are often stored on a USB dongle (hardware key) or a license file on your engineering PC. For Runtime Advanced to use the license, it must be present on the target PC (the computer running the runtime), not just on the engineering PC where TIA Portal is installed. You must transfer it using the Automation License Manager (ALM) .

Windows sometimes disables background services. Siemens uses the Automation License Manager (ALM)

Before diving into fixes, identify which scenario fits your situation:

Summary: Add a runtime feature that allows WinCC Runtime Advanced to continue logging and operating when the license key is temporarily unavailable (networked license server unreachable or dongle disconnected), while ensuring licensing compliance.

Proposed behavior (defaults — adjustable in UI): If you see the license but it is

Local cached license

Logging continuity

Deferred license check & sync

Tamper protection & audit trail

Admin warnings & alerts

Policy controls

Fail-safe modes

Reporting & compliance export

Secure UI for overrides

Implementation notes (high level):

Default recommended settings:

If you want, I can convert this into:

Sometimes the ALM cache becomes corrupted.