Problem copying files over network from xp to vista

Have a loot at this article on Vista's networking.

http://www.smallnetbuilder.com/content/view/30163/89/

Not sure of the specific issues you're having here, but this is a summary of an email I got from an friend recently - the fact that he was also having issues with XP:Vista transfers made me think of this... But he's using a small corporate domain, which it doesn't sound like you are.

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We ordered a couple of new laptops, both with Vista business. It logged onto the domain properly (setting this up is almost the same as xp, just hidden a little more).

However, I couldn't access the shares on the Win2000 server, or the samba shares on the Linux server. At first I thought it was a permissions problem (no - worked fine on an XP box with the same credentials), then I went through more credentials troubleshooting and still no love. Damn! Guess what? Vista is set up to use NTLM version 2 by default. WTF? Awesome! Now you get to dig and figure out how the *(&%$^ to change that. Here's the dirty work:

Start -> Control Panel -> System & Maintenance ->Administrative Tools
- -Double Click Local Security Policy
- -On the left pane, click to expand Local Policies
- -On the left pane, click on Security Options
- -Now, on the right pane, near the bottom, click on Network Security LAN Manager Authentication Level
- -In the drop down menu, change the default setting (NTLMv2 only) to
Send LM & NTLM - use NTLMv2 session if negotiated.

Of course, Wikipedia has a great explanation of NTLM and all of its
incarnations: http://en.wikipedia.org/wiki/NTLM

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Hope this helps,
/d