Setting up a 2-way sync between local files and network drive

I'm trying to set up two way sync between some files on my laptop and a network drive so that changes made to either the copy on the network or on my laptop get propagated to each other. I've read the instructions for setting up an "offline file" sync, which is a one way sync. The instructions usually mention that it's possible to set up a two-way sync, but they never actually describe how to do it. Anyone know?

Thanks for the recommendations! I have briefly looked into those. I'm doing this on behalf of a small business with 20 or so computer's that I'd like to have sync important files with a server. I think those programs would work, but I would prefer to use Windows native ability if it's possible. Still haven't figured out how to do that though, so I may have to just go with a third party application.