@badger101 how would this network path be defined? You can extract all variables that have been set in a node (give a variable name in the white box to the right) and use them later.
In your case you might split the path/URL to get the parent folder.
If you are dealing with remote file systems sometimes a little experimentation is needed to switch between absolute and relative paths.
In the long run you might benefit from mastering KNIME’s file path concept 
instead of URLs or URIs.
Maybe you can share some screenshots about how your path and setup does look like.