Vista - Vista machine not joined xp domain

Hello all,

I've just spent the last day and a half reading forums, but no-one seems to have had the same problem as I have.

We've just bought a new vista business x64 machine to add to our existing network. All the other machines are running xp pro sp2. I've added the vista machine to the domain and logged in using my domain id. In the 'Network' folder I can see all the other machine names. So far, so good.

If I try and access one, however, I get one of two things:
1. A dialog asking for username and password. It doesn't accept anything I type in.
2. An error message saying the account is locked.

I can ping any of the xp machines, by name or ip and get a response ok.

Trying to access in the other direction, all is fine. From an xp machine, I can access any folder on the vista machine, make changes, everything. I've installed LLTD on one of the xp machines, so it appears on the full map thing, otherwise it has made no difference.

All folders have been set to 'Everyone full access'.

Any ideas?

Have you tried this:- Workgroup Password

Looked like a goer, but no joy. Still get the same thing.

Forgot to say above that we have a hardware firewall on the network, so all windows firewalls are turned off.

Finally sorted the problem.

I found a Vista enterprise disc here, so I installed that. Still nothing.

Then I changed the LAN manager authentication level to 'send LM and NTLM - use NTLMv2 if negotiated' and that's fixed it. I'm sure I tried that yesterday. Perhaps it didn't go in or maybe you need to upgrade from business as well.

Anyway, it's all good now. Thanks for your help /z3r010