Article - CS293892
How to clear trusted storage for PTC Kepware products
Modified: 17-Feb-2026
Applies To
- ThingWorx Kepware Server (legacy) 8.0 to 6.18
- Kepware Server (formerly KEPServerEX) 5.20.396.0 to 7.0
Description
- Kepware Server displays 'Trusted Storage Load Failed' error during licensing
- KEPServerEX displays 'Failed to generate request: (Mandatory XML element missing)' error during licensing
- KEPServerEX displays 'Failed to Generate Request [First (or only) signature invalid]' when trying to generate the activation_request file
- KEPServerEX License Utility displays duplicate License Activation IDs Duplicate Activation IDs in License Utility
- License missing at KEPServerEX 6 License Utility
- KEPServerEX displays 'Failed to generate response: [response corrupted]' during licensing
- Kepware Server V7 License missing from License Utility
This is a printer-friendly version of Article 293892 and may be out of date. For the latest version click CS293892