Article - CS291994
'The user identity token is not valid.', Status code = 0X80200000 error is posted in KEPServerEX / ThingWorx Kepware Server
Modified: 21-Jul-2025
Applies To
- ThingWorx Kepware Server (legacy) 8.0 to 6.18
- Kepware Server (formerly KEPServerEX) 5.1.71.0 to 6.18
- Driver: OPC UA Client
- Interface: OPC UA
Description
- Getting the Event Log message: The user identity token is not valid. Status code = 0x80200000
- OPC UA client failing to connect to OPC UA Server
- Cannot establish OPC UA tunnelling between two KEPServerEX instances
- Error in event log:
OPC UA Client [channel] | Channel failed to connect. | Status description = 'An internal error occurred as a result of a programming or configuration error.', Status code = 0X80020000.
- Clicking on Device Properties > Tag Generation > Select import items… shows pop-up
Failed to connect to UA Server 'opc:tcp//[ip]' for browsing
- OPC UA Client settings:
- Channel Properties > Authentication > username/password = blank
- Channel Properties > UA Server: Security Mode=None, Message Mode=None
- Unspecified Error when using window form and ClientAce DAJunction to connect to remote KEPServer through OPC UA
- User want to allow Anonymous connections in Kepware
- The call to Connect from the ClientAce code fails with an unspecified error
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