Shared Folders Missing

[charlywin]

The situation:

Office 1 (192.168.4.X)

1. Windows Small Business Server 2003 (SP2) (SBS 2003)

1. Router Linksys VPN RV042 (last firmware)

6. Desktops Windows XP Pro SP2

Office 2 (192.168.5.X)

1. Router Linksys VPN RV042 (last firmware)

6. Desktops Windows XP Pro SP2

Both offices VPN connected over linksys routers.

Routers have Netbios enabled and the 12 desktops have NETBIOS/TCPIP enabled

The windows XP firewall is enabled in all Desktops but in all cases I have enabled file and print sharing and remote desktop and remote assistance.

WINS is running on SBS 2003

DNS server is running on SBS 2003

Messenger service is running on all desktops and on SBS 2003

I can ping all machines from server and I can ping each computer from each other.

The problem:

All desktops can reach the server and they can reach each other.

I can see all the computers in My Network places from all the computers and also I can see all the Shared Folders.

From SBS 2003 I can see all the computers from both offices but I have trouble with shared folders.

I can reach all shared folders from the Office 1 (the same LAN that the SBS 2003 is installed on) but I see the Shared Folders of ONE computer from Office 2 and I can not see the other 5 shared folders from the others 5 desktops.

I can send “net send” messages to the same computers and I cannot send it to the same computers that I can’t reach the shared folders.

I tried some solutions from many forums (registry, security policies, Authentication) but I couldn’t find a solution to my problem. Ok I can reinstall 5 desktops, but I don’t like it.

All the computers are in the same Domain (I have just one domain)