Windows Server 2025 DC Won't Install / Uninstall MSI packages, NIC Domain Category issue.

Replying to my own post as I have a resolution to the issue. Actually have to give credit to Ninja support. They provided a reference to a Reddit post that had the solution. Being that Ninja also installs Splashtop, the issue reported in other posts, although related to Syncro & Atera applies to Ninja as well as they all use Splashtop (although Ninja has their own Remote app that is awesome, haven't used Splashtop since starting using their remote app)...but I digress. 

Setting the Splashtop Remote Service to either Disabled or Automatic (Delayed) and rebooting the machine  resolves the issue. .MSI packages will now install / uninstall normally. Also, while the issue with the machine's NIC network category automatically being set to Public upon reboot still remains, running the script mentioned before now executes correctly in Task Scheduler. So the Splashtop issue also affected the scheduled task.

References:
Primary post that helped resolved the issue: https://www.reddit.com/r/syncro/comments/1j26412/splashtop_appears_to_break_windows_server_2025/

Others:

https://www.reddit.com/r/WindowsServer/comments/1j261uc/splashtop_win_server_2025_dc/

https://learn.microsoft.com/en-us/answers/questions/2191037/agents-not-communication-after-promoting-a-server?forum=windowserver-all&referrer=answers&page=1#answers

https://www.reddit.com/r/WindowsServer/comments/1iq9b4f/applications_wont_install_2025/