Came across an issue where the need to move fileshares that were accessed using a systems netbios name. Once the shares were moved to a shared server, it needed to be updated with a secondary netbios name. Here’s how to do it:
Add a multi-string Value: OptionalNames
Edit the content/value to contain the additional names, 1 per line.
Disable/Re-Enable the nic you want the changes applied to for a quick fix. Once you reboot the server it’ll apply to all nics machine wide.
Changes also had to be made to the server’s hosts file and ip setup since the system was also on a domain.
This methodoloy has worked since at least 2003 Server and holds true for 2012 R2.