They're both in workgroup: WORKGROUP.
Here's the connection map from the Desktop's perspective.
My brother is on the desktop so I had to recreate it with paint.
But it's accurate.
Here's the laptops.
The laptop can recognize that there's another computer there, just not in the direct line. The Desktop recognize the laptop without a problem. And yeah for some reason the Desktop says its connecting to ? and then connecting to Juarez(my router)