DSM-G600, DNS-3xx and NSA-220 Hack Forum

First of all please excuse my English everybody, but I can not found any Spanish help at all.

Second I have a problem with my DNS-323 (Firmware 1.03), I use it in a network with 4 computers, all connected wireless to a router and the DNS-323 its connected to the router using a cable.

Three of those computers have WinXp, and the last one (the one with the problems) have Win Vista business.
With all WinXp the computers I can access the DNS-323, and the files on it, and they can access my public folder in the Vista one, on the other side, on the Vista I can access all the shared folders of the XP, and in the network map I can see my DNS-323, when I click on it I can see the Web_Page folder, and Volume_1 folder, and the USB printer, but if I click in any of them the computers stops working… and I have to close the explorer.

If in the internet explorer I type the IP of the DNS-323 it stays forever and never enters at all. But if I PING it it works perfectly.

I tried "secpol.msc"  "Local Policies" > "Security Options" "Network Security: LAN Manager authentication level”. "Send LM & NTLM responses."

I also tried net use * \\192.168.xx.xx\Volume_1 /user:admin and I get a drive (z but I cannot access it either.

I also tried TCP/IP in the "Advanced settings"->WINS in the TCP/IP properties of the Local Area Connection Properties, and enable NetBIOS

I have my firewall disconnected (oh my!) but still it doesn’t work.

I added my Vista user to the DNS-323 no help at all…

Any ideas? Beside format windows Vista and go back to XP…

Thank you all in advance!!!