Then be sure the shares are named appropriately.
Then set up the samba client on your linux boxes I am assuming you know how to do this? If not, we can definitely back up. No harm in asking.
Then be sure the names match for the networks and shares.
It was pretty easy for me to do, and I am not a guru at all.
Please be patient. Trouble shooting over the web is difficult. There are a number of people who want to help you. We get a big grin when you face palm and say “AHHHH, I see it now!” Hoping for that quickly
I’m running Mint 18.3, it has Samba included in the core out of the box so 19.2 should also. And that is all I had to do also, I just hot plugged them, they found each other, then I had to make sure they were named correctly and approved each other.