I have 3 computers connected for sharing via a router. One is running Windows
2000, another Windows 95 and my main computer is using Windows XP.

I have a shared drive on Windows XP which used used to be able to be
accessed from the other 2 machines but for some reason, it now does not work.

When I try to view this shared drive on Windows XP from the Windows 2000
machine, I get the error message: Logon Failure: the User has not been
granted the requested logon type at this computer. The User ID and passwords
are correct. The network is correctly connected as I am able to view files on
the Windows 2000 from my Windows XP machine.

When I check the Windows XP security log, I notice the following:

Event Type: Failure Audit
Event Source: Security
Event Category: Logon/Logoff
Event ID: 534
Date: 12/18/2005
Time: 8:22:53 PM
User: NT AUTHORITY\SYSTEM
Computer: PC001
Description:
Logon Failure:
Reason: The user has not been granted the requested
logon type at this machine
User Name: my User name
Domain: my domain name
Logon Type: 3
Logon Process: NtLmSsp
Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Workstation Name: my workstation name

I try turning off Windows firewall, but still it does not work.

Can anyone help?

Thanks...