Samba not accessabe over WAN - Does not show that port 138 is open / firewall is disabled still not working

[floods7]

I have a file server setup with samba on a centos 6.6. I can access it inside the network but it is not accessable over WAN. I have all ports forwarded properly through my router. Here is a nmap I ran:

PORT STATE SERVICE
53/tcp open domain
80/tcp open http
443/tcp filtered https
5900/tcp open vnc
8081/tcp open blackice-icecap
10000/tcp open snet-sensor-mgmt


I think I am missing port 138 but I don't know how to set that to open seeing as I disabled the firewall to make troubleshooting a little easier. What am I missing for WAN access to samba

[xenopeek]

Moved here as this looks to not be about Linux Mint. Perhaps a better place to ask is the CentOS forums? https://www.centos.org/forums/