Networking Laptop to home network

Greetings,

I am trying to use a laptop on home network. The laptop can access
the internet through the wireless router, the hard-wired machines
can access share files on each others machines. But, I can not get
the laptop to access the share folders on the desktop pc’s.

Does anyone know how to take care of this? I have chased my tail
trying to figure it out….

I thought if I put the subnet for the pc… then I should be able to
access the folders – Is this correct?

Any help would be appreciated,
Jessica