My wireless infrastructure was working fine until recently, random occurrence of connection issues which are accompanied by Event 4625 with Failure Status of 0xC000005Ein Event Log of the RADIUS server. The only way to resolve this now is to reboot my server hosting the Network Policy Server (RADIUS).
The following is my setup:
Domain controllers: Windows Server 2003 & Windows Server 2008 R2
NPS Server: Windows Server 2012
Enterprise Root Certificate Authority Server: Windows Server 2012
NPS Policies: > Network Policies: >
NAS Port Type: Wireless - IEEE 802.11
Windows Group: MyDomain\Wireless-Guest Users
Authentication Type: EAP
I am using PEAP with MS-CHAP V2
The event log does not indicate very directly the root cause of my problem. I might have missed certain steps but I am not sure what.
Any help or comment on this matter would be highly appreciated.
Let me know if more details is required. The following is a copy of the event form the NPS server (with dummy names).
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 27/10/2014 3:35:25 PM
Event ID: 4625
Task Category: Logon
Level: Information
Keywords: Audit Failure
User: N/A
Computer: Radiusserver.mydomain.com
Description:
An account failed to log on.
Subject:
Security ID:
SYSTEM
Account Name:
RadiusServer$
Account Domain:MYDOMAIN
Logon ID:
0x3E7
Logon Type:3
Account For Which Logon Failed:
Security ID:
NULL SID
Account Name:
testuser1
Account Domain:MYDOMAIN
Failure Information:
Failure Reason:An Error occured during Logon.
Status:
0xC000005E
Sub Status:
0x0
Process Information:
Caller Process ID:0x3f4
Caller Process Name:C:\Windows\System32\svchost.exe
Network Information:
Workstation Name:
Source Network Address:-
Source Port:
-
Detailed Authentication Information:
Logon Process:CHAP
Authentication Package:MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Transited Services:-
Package Name (NTLM only):-
Key Length:
0
This event is generated when a logon request fails. It is generated on the computer where access was attempted.
The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.
The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).
The Process Information fields indicate which account and process on the system requested the logon.
The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
The authentication information fields provide detailed information about this specific logon request.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
<EventID>4625</EventID>
<Version>0</Version>
<Level>0</Level>
<Task>12544</Task>
<Opcode>0</Opcode>
<Keywords>0x8010000000000000</Keywords>
<TimeCreated SystemTime="2014-10-27T07:35:25.435758200Z" />
<EventRecordID>853026</EventRecordID>
<Correlation />
<Execution ProcessID="736" ThreadID="216324" />
<Channel>Security</Channel>
<Computer>RadiusServer.mydomain.com</Computer>
<Security />
</System>
<EventData>
<Data Name="SubjectUserSid">S-1-5-18</Data>
<Data Name="SubjectUserName">RadiusServer$</Data>
<Data Name="SubjectDomainName">MYDOMAIN</Data>
<Data Name="SubjectLogonId">0x3e7</Data>
<Data Name="TargetUserSid">S-1-0-0</Data>
<Data Name="TargetUserName">testuser1</Data>
<Data Name="TargetDomainName">MYDOMAIN</Data>
<Data Name="Status">0xc000005e</Data>
<Data Name="FailureReason">%%2304</Data>
<Data Name="SubStatus">0x0</Data>
<Data Name="LogonType">3</Data>
<Data Name="LogonProcessName">CHAP</Data>
<Data Name="AuthenticationPackageName">MICROSOFT_AUTHENTICATION_PACKAGE_V1_0</Data>
<Data Name="WorkstationName">
</Data>
<Data Name="TransmittedServices">-</Data>
<Data Name="LmPackageName">-</Data>
<Data Name="KeyLength">0</Data>
<Data Name="ProcessId">0x3f4</Data>
<Data Name="ProcessName">C:\Windows\System32\svchost.exe</Data>
<Data Name="IpAddress">-</Data>
<Data Name="IpPort">-</Data>
</EventData>
</Event>