I cant help but think that at some point over the years some simple setting got changed on the desktop that is blocking access to it.
Results of ipconfig/all on desktop
Windows IP Configuration
Host Name . . . . . . . . . . . . : MAINPC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : sssnet.com
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : sssnet.com
Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast Eth
rnet NIC
Physical Address. . . . . . . . . : 00-40-2B-40-EE-4F
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.0.146
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
Lease Obtained. . . . . . . . . . : Wednesday, May 28, 2008 12:53:13 AM
Lease Expires . . . . . . . . . . : Thursday, May 29, 2008 12:53:13 AM
Results of ipconfig/all on laptop
Windows IP Configuration
Host Name . . . . . . . . . . . . : laptop1
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : sssnet.com
Ethernet adapter Wireless Network Connection:
Connection-specific DNS Suffix . : sssnet.com
Description . . . . . . . . . . . : D-Link DWA-652 XtremeN Notebook Adap
ter
Physical Address. . . . . . . . . : 00-1C-F0-6E-5D-6B
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.0.158
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
Lease Obtained. . . . . . . . . . : Wednesday, May 28, 2008 12:56:13 AM
Lease Expires . . . . . . . . . . : Thursday, May 29, 2008 12:56:13 AM