Drive not showing up when trying to map a network drive (Laptop)

Someone please help me.
I am trying to set up our server which we have on my sisters new laptop. when I go to 'map network drive' and click 'browse' the server called 'BGE-B-NAS' doesn't appear on the list. I have tried multiple times and nothing seems to be working. I also tried to type it in manually but it just said that 'windows cannot access \\BGE-B-NAS\Companydata'. Is it to do with the fact that this is a laptop and it is using the wifi instead of being wired?

Any help would be very helpful and thank you in advance for the help.