PURE HORROR of trying to configure local network in shared office

What are you exactly ordering when you order a „static ip address“? Because the IP you give here is a private IP (i.e. not accessible from the internet).

This is probable your IP on the office network, which is kinda useless if it really is isolated…

With them giving him a “.51.0” address the company is basically saying you have the entire .51/24 subnet to connect your devices on and use for the office.