RE: Can't map domain - error 'A Device attached to the system is n

NEWT utility to find IP address of Browsed around other sites for answers -
to no avail.
I tried :
Logging on with user@domain instead of domain\user. Claim user/password is
incorrect
Logging on with user@domain.com instead of domain\user. Claim user/password
is incorrect
Enabled NETBIOS over TCP/IP. No changes
Tried logging on from DOS box with various variants of NET USE. System error
59 has occurred. An unexpected network error occurred.
Used NEWT utility to find IP-address of DFS server and tried various formats
of users. No luck.