LAN file Sharing problem

Greetings Geekathonians!
Sadly, I feel that this is a problem I should have been able to diagnose long ago....

The short story on is this: I have a home network and I can no longer browse it for the any of the 4 computers that should be on it. I suspect that it has something to do with a new linksys router that I bought, but linksys has not been particularly helpful in forging a solution and I could be dead wrong on my assumption.

My network has 3 XP machines and a Mac running OSX Panther.
Before I replaced the router, I was able to click on "View Workgroup Computers" and see all the XP machines. I would also be able to browse and connect to any of these computers with my Mac.
My old Netgear WGT624 v2 had a failing wireless antenna and some network failures so I decided to get something more robust. I decided to get a WRT300N v1.
I set the new router up and can surfe from all computers just fine.
The error I get when I try to "View Workgroup Computers" is as follows:
"
Mshome is not accessible. You might not have permissions to use this network resource. Contact the administrator of this server to find out if you have access permissions.

The list of servers fo rthis workgroup is not currently available
"
As it stands, the only way I can transfer/access files among the computers is to use Explorer and dial the IP of the desired computer in the address bar.

Before anyone gets hastey, I'm going to post my ipconfig /all for one of the XP machines:

Windows IP Configuration
Host Name.................: DELL
Primary Dns Suffix......:
Node Type.................: Hybrid
IP Routing Enable.......: No
WINS Proxy Enabled..: No
DNS Suffix Search List: no.cox.net

Ethernet adapter Local Area Connection
Connection-specific DNS Suffix: no.cox.net
Description.............................: Intel(R) PRO/100 M Network Connection
Physical Address....................: 00-07-E9-BA-D2-0A
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..........................: (internet DNS servers)

***NOTE:
1) The Network setup wizard has already been run on the XP machines to make sure that they were sharing.

2) All computers can be pinged when firewalls are turned off. This includes pinging from the router itself to any of the computers.


Any ideas?

 

Check your Firewall software for starters. Most likely the Netgear router had a different IP scheme then the Linksys has. Also, http://www.ezlan.net is great for helping in how to determine what direction to take in solving networking problems.

 

Thanks for the tip. brownizs.
The one computer I had Norton Internet Security on detected it was on an unfamiliar network and disabled file and printer sharing. Somehow, this translated to none of my computers being able to access each other.
Regardless, I am up and running. Thank you!!!