I can not add edit or delete files using the file manager that comes with the portal. I keep getting access denied errors even though Network Service Account has full access to all files and folders on the website..

Below is an error trying to delete a file. Could this also cause upgrade issues?  Any suggestions on how to resolve this?

I figured it out. Although I had the correct permissions for the dnn directory, the directory above it must also have read/write privilleges as well.

Wish  the documenation said something about it.