Article - CS310682
OPC UA Client: 'User does not have permission to perform the requested operation' 0X801F0000 in KEPServerEX / ThingWorx Kepware Server
Modified: 17-Sep-2025
Applies To
- Kepware Server (formerly KEPServerEX) 6.0.2107.0 to 6.18
- ThingWorx Kepware Server (legacy) 8.0 to 6.18
- Driver: OPC UA Client
Description
- OPC UA Client: Session watchdog read error in KEPServerEX /ThingWorx Kepware Server
- The error that UaExpert shows me is: BadUserAccessDenied
- Message in event log:
Session watchdog read error. | Status description = 'User does not have permission to perform the requested operation.', Status code = 0X801F0000. Reconnecting server due to connection loss.
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