Prova a vedere qui:

http://www.eventid.net/display.asp?e...source=userenv

è una pagina molto lunga (e tutta in inglese) però più o meno a metà c'è il tuo errore e varie possibili spiegazioni. Avrei voluto postartelo ma è troppo lungo.
Questa è la parte iniziale:


Source Userenv
Type Error
Description Windows cannot determine the user or computer name. Return value (<return error code>).
Comments Adrian Grigorof (Last update 6/12/2003):
This event occurs in various conditions, the return code providing more details about the problem.

Value 14 - "Not enough storage is available to complete this operation." - As per Microsoft: "Do one of the following, then retry the operation:
1. reduce the number of running programs
2. remove unwanted files from the disk the Paging File is on and restart the system
3. check the paging file disk for an I/O error
4. install additional memory in your system."

Value 59 - "An unexpected network error occurred." - Typically, connectivity problems (cable, hub, switch, etc.. layer 2 level). See also the comments for error code 59.

Value 1722 - "The RPC Server is unavailable" - Usually occurs when DNS servers are not configured properly. There is connectivity but not at the service level. See the Q260371 link below for troubleshooting such issues. One note here, usually it may appear that DNS is set properly but one has to double-check all the aspects of DNS registration/resolution as the problem may not be that obvious. See also Q261007 - It says that this behavior can occur if the address for the configured preferred DNS server on the client is invalid or unreachable.
From a newsgroup post: "Do the following to ensure that the SRV records for the AD servers are in DNS properly: (from the DOS prompt)

nslookup
set type=srv
set type=srv
_ldap._tcp.dc._msdcs.YOURDOMAIN.COM
Server: dnsserver.yourdomain.com
Address: 192.168.100.2

you should see something like this:

_ldap._tcp.dc._msdcs.YOURDOMAIN.COM SRV service location:
priority = 0
weight = 100
port = 389
svr hostname = server1.YOURDOMAIN.COM
_ldap._tcp.dc._msdcs.YOURDOMAIN.COM SRV service location:
priority = 0
weight = 100
port = 389
svr hostname = server2.YOURDOMAIN.COM
server1.YOURDOMAIN.COM internet address = 1.1.1.2
server2.YOURDOMAIN.COM nternet address = 1.1.1.1

If you don't then you definately have a DNS problem.

I would also recommend running the dcdiag and netdiag utilities on
your domain controllers. If you find that the servers aren't in DNS,
then make sure dynamic updates are enabled on your DNS server and
restart the netlogon server on each of your DCs."

Value 1753 - "There are no more endpoints available from the endpoint mapper." - See the comments for error code 1753

Ionut Marin (Last update 10/11/2003):


Ci sono poi molte altre possibili cause e spiegazioni, prova a vedere...