First, check the Bank Entry to see the ACH path for the file.
Then go into TCL and type: LIST DOS:\xxx(path) for Windows
or
LIST DOS:/xxx(path) for Linux
If the list does work then you need to fix the connection or mount, so it is correct
Once the list works then you will need to copy the data out of ACH.DATA file for the customer. You will need to get the filename (example: 060316001) then go into TCL and type: COPY ACH.DATA xxx (filename) <ENTER>
To: (DOS:\ xxx(path) for Windows
or
To: (DOS:/xxx(path) for Linux
This will create the file in the proper space, so they are work with it.