Despite what is said the errorlog.txt of lansweeper (c$\Program Files\lansweeper\Service) Showing the identification failures of each user :
22/04/2010 16:35:50: DOMAIN\IDP0587 Logon failure: unknown user name or bad password.
at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)
at System.DirectoryServices.DirectorySearcher.FindOne()
at LansweeperService.LS_ActiveDirectory.UserExistsInAD(String username, String userdomain, Hashtable& DomainsNotAvailableList)
22/04/2010 16:35:50: DOMAIN\IDP7676 Logon failure: unknown user name or bad password.
at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)
at System.DirectoryServices.DirectorySearcher.FindOne()
at LansweeperService.LS_ActiveDirectory.UserExistsInAD(String username, String userdomain, Hashtable& DomainsNotAvailableList)
22/04/2010 16:35:50: DOMAIN\IDP7922 Logon failure: unknown user name or bad password.
at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)
at System.DirectoryServices.DirectorySearcher.FindOne()
at LansweeperService.LS_ActiveDirectory.UserExistsInAD(String username, String userdomain, Hashtable& DomainsNotAvailableList)
22/04/2010 16:35:50: DOMAIN\IDP7951 Logon failure: unknown user name or bad password.
at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)
at System.DirectoryServices.DirectorySearcher.FindOne()
at LansweeperService.LS_ActiveDirectory.UserExistsInAD(String username, String userdomain, Hashtable& DomainsNotAvailableList)
22/04/2010 16:35:50: DOMAIN\IDP8073 Logon failure: unknown user name or bad password
The DC show logs of EventID 675 for each user
Pre-authentication failed:
User Name: idp0587
User ID: DOMAIN\idp0587
Service Name: krbtgt/DOMAIN.CO.IL
Pre-Authentication Type: 0x2
Failure Code: 0x18
Client Address: 10.1.1.115 ( the lansweeper server ip )