Home Network Crashed

Have a network in my home which consists of:

Dell Desktop - XP Home Edition Version 2002 SP 2
Dell Laptop - XP Media Center Version 2002 SP2
Toshiba Laptop - XP Home Version 2002 SP2

Network suddenly stopped file and print sharing.

I can ping each machine and router. Router consists of a Linksys WRT54G v2.2 wireless router. Firmware is current.

It does not matter if the network is wired or wireless status remains the
same.

In network neighborhood the Desktop can see the Toshiba, but cannot access any files on the toshiba.
-Desktop error message reads: \\Toshiba is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions. The network path was not found

The Toshiba and Dell Laptop can not even access the workgroup (tried to
access using My Network Places, View workgroup computers).
- Dell and Toshiba Laptop error message reads: 40100 (the workgroup) is not accessible. You might not have permission to use this network resource.
Contact the administrator of this server to find out if you have access
permissions. The list of servers for this workgroup is not currently
available.

IP config information for each computer is as follows
DESKTOP
C:\Temp>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Kitchen
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Peer-Peer
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : wildblue.com

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network
Connection
Physical Address. . . . . . . . . : 00-16-76-A4-DC-B8

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . : wildblue.com
Description . . . . . . . . . . . : Linksys Wireless-G PCI Adapter
Physical Address. . . . . . . . . : 00-12-17-85-8C-A6
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.105
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 12.175.230.61
Lease Obtained. . . . . . . . . . : Friday, April 06, 2007 11:29:56 PM
Lease Expires . . . . . . . . . . : Saturday, April 07, 2007
11:29:56 PM


DELL LAPTOP
C:\ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Leslie
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : wildblue.com
wildblue.com

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . : wildblue.com
Description . . . . . . . . . . . : Dell Wireless 1370 WLAN Mini-PCI
Card
Physical Address. . . . . . . . . : 00-16-CE-0E-BF-32
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.102
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 12.175.230.61
Lease Obtained. . . . . . . . . . : Friday, April 06, 2007 10:34:15 PM
Lease Expires . . . . . . . . . . : Saturday, April 07, 2007
10:34:15 PM

TOSHIBA LAPTOP
C:\Temp>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Toshiba
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Peer-Peer
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : wildblue.com

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast
Eth
ernet NIC
Physical Address. . . . . . . . . : 00-A0-D1-3C-B1-26

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . : wildblue.com
Description . . . . . . . . . . . : Atheros AR5005G Wireless Network
Adapter
Physical Address. . . . . . . . . : 00-16-E3-1B-8B-81
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.103
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 12.175.230.61
Lease Obtained. . . . . . . . . . : Friday, April 06, 2007 6:23:50 PM
Lease Expires . . . . . . . . . . : Saturday, April 07, 2007 6:23:50
PM

Any help at all would be greatly apprieciated.

Thank you,

Yes I have one user name and password that is common to all machines. Also do not see how this would have affected all three machines at the same time. Never had a problem until a couple of weeks ago.

Thanks,