C:\Program Files (x86)\PTC\ThingWorxIndustrialConnectivity\bootstrap.log Look for entries like CheckRootCert, GlobalSign Failed to pinpoint the missing authority. Common Scenarios and Troubleshooting
If the server must remain offline or cannot be updated, you must manually install the required root certificates (often from issuers like GlobalSign or VeriSign):
If the error persists, review the installation logs to identify which specific certificate is missing. You can find these at: C:\Program Files (x86)\Kepware\KEPServerEX\bootstrap.log
: If you see errors about "invalid digital signatures" alongside the root certificate warning, it often indicates the installer cannot verify its own integrity because the chain of trust is broken at the root level.