Make sure the file path to the filename has the identical case structure as shown in the error message

Make sure the file path to the filename has the identical case structure as shown in the error message.

Troubleshooting

Interface Operation

1. 
   Make sure the cache files have been previously configured during the initial interface start using the disconnected startup configuration. This can be verified by reviewing PI point value history on the PI Server using the appropriate PI client, such as DataLink and by reviewing the pipc.log file that contains the initial start of the interface configured for disconnected startup. The PI points for the interface should have been receiving data during the initial cache build process. The user should see messages containing cache file information as described in the “Messages” section of this document. If cache synching is enabled, there will be a message stating the cache file synchronization is complete. There should also be a message containing the number of points matching the point source for the interface. If no modifications to the PI Server database for PI points matching the interface point source have been made since the cache files have been built, the number of points for the interface starting from the cache file should be identical.
   
2. 
   Restart the interface.
   
3. 
   Confirm the number of points matching the point source is identical to the number of points matching the point source on the PI Server.
   
4. 
   If the number of points loaded by the interface does not match the number of points on the PI Server, attempt additional restart. If a restart is not successful, rename or delete the point caching files to allow the interface to create new files on the next restart.
   
5. 
   Contact OSIsoft technical support if none of the above procedures results in a successful disconnected startup configuration.