This is not so much of a bug as a "forgotten to do this when installing".
As it currently stands, when you enable Samba Windows File Sharing (under other modules), the said module is installed without issue. However, the firewall is not opened to allow connections to the shares without completing the following commands.
firewall-cmd --permanent --add-service=samba
firewall-cmd --reload
This is the only way I have been able to get Samba working. Is this correct or is the firewall closed for a reason and, if so, how do you correct the issue without adding Samba to the firewall exceptions.
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Server OS: Ubuntu 16.0.4.2LTS
Webmin/Virtualmin: Latest (updated daily)
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Chris: Adelphia Interactive