I tried what you suggested..
1.Same timezone, same time (same minutes)
2.I tried that with the domain names.. tried domain\user or user@domain with no luck.
3.tried net use with /user:domain\user pass with no luck. Same problem.
4.There is no Firewall running on the ADS, tried to deactivate the enhanced IE security that comes with R2, also no luck. Even added the name manually to the DNS, but can't connect to be box via IP either.
5.The Domain ecurity and also the domain controller security is set to "not defined"
6.By rebooting the DS you mean rebooting the machine I guess. No luck so far. Try to restart it some times this weekend when nobody else needs it.
"7"I tried to explain my problem to you support team with no luck...saying that the R2 versions aren't tested yet and I should download the new firmware, which I did.
I'm getting a little desperate..have no idea what to do...Listening with wireshark the TCP/IP protocol the handshake happens and the windows server suddenly sends an "end".
It must be some kind of security or and negotiation between those two. I can ping it, can access the web interface, can connect with telnet but just can't connect to the shared drives...