Networking

I have 2 laptops and 1 desktop and I wish to network them.

I have done following.

1. Connected all through wireless router and able to ping
between them.

2. Files are shared.

3. Able to connect from both laptops to desktop and
access files.

4. Able to see all of them on each's workgroup network
screen BUT.

5. Desktop cannot access Laptops and Laptop cannot access
Laptop.

6. No firewalls are kept.

Please advise. My email address is
divyesh@diversifiedpromotions.com

Thanks

Divyesh