The message "Error 0x80030103 occurred saving configuration to file." occurs when attempting to save a MatrikonOPC Server configuration file (.xml).
Ensure the following, and retry the save operation:
- The user account running the MatrikonOPC Server service has read/write access permission to the .xml configuration file.
- The user account starting(running) the MatrikonOPC Server configuration application/GUI, has read/write access permission to the same .xml file.
The error is due to insufficient Windows user security permissions.