Unknown Network in my Finder

It's not a network. It's a PC (for Personal Computer, not a Mac) advertising sharing services on the same network as your Mac.

It cannot be blocked, but you can hide devices. Position your cursor just to the right of Locations in that Network windows sidebar. Hide will appear. Click it. They will no longer appear.

Read the manual for your router for information on how to check and see what's connected to your network.

We have no way of knowing exactly what it is other than it is a device that is connected to your network that identifies itself as "smith".

I want to but a new MacBook Air but am uncertain that I can understand your online help screens. I have many questions about setting it up, connecting with the new Thunderbolt to my in house router without a computer, etc , charging with it, so many questions. I’m 82, no techie and was hoping to make an appointment with the Genius Bar as I’ve done in the past but there’s no access because of COVID-19 which I completely agree with. Should I wait until you’re open again and buy it directly from the Apple store with aGenius appointment? Sorry, please edit. Thank you, Marlene

Marlene Lazzara wrote:

Should I wait until you’re open again and buy it directly from the Apple store with aGenius appointment?

Apple does not participate on this site Marlene. If you want to buy a new MacBook Air, or you already bought one and need help with it, Apple offers 90 days of telephone or chat support completely free as part of your purchase.

They will send you an email with instructions to schedule a session with them, or start here: Contact Support.

The is not a "network", it is a device on your network.

Check your router for connected devices if you don't know what it is.

This has nothing to do with the topic of this thread.