Find My iPhone won't be able to locate your device, but the last known location will appear for up to 24 hours. You can still use Find My iPhone. Real-Time tracking of user Logon / logoff in Active Directory with Domain Controller Logon Failure Report provides information on the login failures and the. There are currently no logon servers available to service the logon request. " this means the system was unable to obtaina valid address from the DHCP server, Find additional PowerEdge and PowerVault articles. This logon permission applies strictly to the local computer and must be In the ' Select Users or Groups' dialogue, find the user you wish to. Solution: If your GPO is setup to audit logon events, you will be able to find the " login denied" events in the Event logs "Security" of all your DC.