cached credentials and shared resources access

Hi There !

My english is not good so maybe the answer to my question exists on
NGs but i cannot find it... :-(

I have a notebook with Win XP Pro registered on domain XYZ. When user
goes away he can logon and work in domain with cached credentials.

Then he connect to our company via VPN (windows integrated PPTP
client) and he can (i.e.) ping any host on LAN.

But he cannot access to his folder or public folders on PDC. XP ask
for a logon and, entering user and pwd of the cached logon, it answers
(it's a translation from my language, not the original message,
brackets 4 my notes): "The username entered is the same used for
connection (ceched logon on the domain). Username already used. Unable
to find a PDC for username verification."

It's a very fast reply, without querying network, so I think it's
WinXP that doesn't try to find the PDC because he know the user made a
network disconnected logon with cached credentials. It cannot immagine
that now the PDC for username is available via VPN.

Other notes:
- I can see shared resources providing a different domain username
than the one has made the cached logon
- If I do a cached logon and then i connect the LAN cable I can see
shared resources
- Network, Dialup network and VPN protocol and bindings properties are
ok

Who can help me ?

Bye



.

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