Article - CS273673
Unable to make configuration changes in Configuration Client or Datalogger Plugin in PTC Kepware Products
Modified: 10-Oct-2025
Applies To
- Kepware Server (formerly KEPServerEX) 5.20.396.0 to 6.18
- ThingWorx Kepware Server (legacy) 8.0 to 6.18
- Configuration Client
- Plugin: Datalogger
- Runtime
Description
- Unable to make configuration changes in Configuration Client or Datalogger Plugin in KEPServerEX / ThingWorx Kepware Server
- Unable to make project changes
- Not able to add or edit Channels, Devices and Tags when connected to Runtime
- All the icons are grayed out in the Configuration
- Button to add new items are disabled or missing from context menu
- Cannot change the loaded Runtime project
- Channel Properties - UA Server is grayed out
- Changed values in DataLogger group or trigger properties switch back to initial values
- Device will not delete in configuration
- Padlock icon in bottom of configuration
- Missing Import CSV menu
- Tried setting the security policy to None on the UA server but it's not taking the change and keeps reverting back to the original settings
- Data Logger - new log time is grayed out
- Cannot add log items
- Configuration can only be started in read only mode
- Message in Event Log:
Configuration session started by [user name] as Default User (RO)
- When attempting to change the Endpoint URL in UA Server in KEPServerEX 6 Configuration Property Editor, and then clicking Apply button, the field changes from bold to regular with the new URL, then immediately changes back to old URL
- In Property Editor when changing socket utilization from One of More Socket per Device to One Socket per channel (Shared), setting reverts back
- The error reads:
This configuration session is Read-Only. No changes to the project will be allowed
- Won't allow change to Symbolic from Logical
- Unable to change the OPC Group from Exception to Polling
- When change is applied, it immediately switches it back to Exception
- Need to enable zero-based addressing, but when enabling the property, it automatically becomes disabled again
- Unable to copy and paste a tag
- Kepware EX changes are not saving
- Datalogger - cannot added new items
- I can select an item, but the apply button to accept it is greyed out
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