Failed VPN access to member server

I have a client with a WIN NT 4 network of
4 servers. The servers include 1 PDC, 1
BDC, 1 Member file server, and 1web
server. I have a VPN setup through a
Watchguard Firewall. This worked fine
until the companies recent move, and
now strange things are happening! I can
connect to the VPN, and I am validated by
both the Firewall and the Domain. I can
access all machines through Network
Neighborhood (or My Network Places), I
can "net view \\anymachine" too, that is
exceptfor the fileserver. All machines are
on the same subnet and the VPN client
gets ip from DHCP. I do not mean I just
can't open a share. I mean that in
Network Neighborhood I can't open
the machine to see shares. I get a dialog
saying "Incorrect password or unknown
username for: \\fileserver". It then asks
"Connect As:" If I connect as Administrator
the machine opens to show shares. Even
if I try a "net view" command, I get a list of
all machines including the fileserver. If i
try "net view \\fileservername" I get
"System error 5 has occurred. Access
Denied". Access denied for Net View?
Anyone have any ideas?

It has to be easy, I mean permissions for
viewing shares without trying to open
them? All shares and new test shares
are Everyone - Full Access.

Thanks to anyone with time to help!

Steve