Open your eID Viewer application to check the status of your "Authentication" and "Signing" certificates. If they are listed as revoked or missing, you may need to visit your local city hall to reactivate them.

The error is rarely a hardware failure and more often a result of software conflicts or connection interruptions. Common triggers include:

Poor contact between the eID chip and the card reader, or a faulty USB port.

Government eID systems are updated frequently to support new card layouts. Download the latest middleware from official sources like eID Belgium or ID.ee (Estonia) .

Often recommended as it uses its own PKCS#11 module, bypassing some OS-level certificate issues.

If you encounter this error while trying to log into government portals or sign documents, follow these steps: