Error 18456 Severity 14 State 16

I am getting the following error in my Sql logs and in my Application Event
viewer:
03/16/2007 07:56:00,Logon,Unknown,Login failed for user
'CTPC\Administrator'. [CLIENT: <local machine>]
03/16/2007 07:56:00,Logon,Unknown,Error: 18456<c/> Severity: 14<c/> State: 1
6.
0000: 18 48 00 00 0e 00 00 00 .H.....
0008: 09 00 00 00 49 00 4e 00 ...I.N.
0010: 54 00 52 00 41 00 4e 00 T.R.A.N.
0018: 45 00 54 00 00 00 07 00 E.T....
0020: 00 00 6d 00 61 00 73 00 ..m.a.s.
0028: 74 00 65 00 72 00 00 00 t.e.r...
I have tried figure out what process is trying to hit this database but to
no avail, how should I go about troubleshooting this? It logs this every on
e
minute and it is on our Portal server.
Thanks,
RobYou can run a trace or Profiler when a login fails and see
what shows up for the application name when auditing the
Login Failures.
It's on the same box as SQL Server so you could also check
what services may be running under the local administrator
account.The security logs may have more information as well
if you track the logins and details for the logins.
-Sue
On Fri, 16 Mar 2007 06:02:16 -0700, Rob
<Rob@.discussions.microsoft.com> wrote:

>I am getting the following error in my Sql logs and in my Application Event
>viewer:
>03/16/2007 07:56:00,Logon,Unknown,Login failed for user
>'CTPC\Administrator'. [CLIENT: <local machine>]
>03/16/2007 07:56:00,Logon,Unknown,Error: 18456<c/> Severity: 14<c/> State:
16.
>0000: 18 48 00 00 0e 00 00 00 .H.....
>0008: 09 00 00 00 49 00 4e 00 ...I.N.
>0010: 54 00 52 00 41 00 4e 00 T.R.A.N.
>0018: 45 00 54 00 00 00 07 00 E.T....
>0020: 00 00 6d 00 61 00 73 00 ..m.a.s.
>0028: 74 00 65 00 72 00 00 00 t.e.r...
>I have tried figure out what process is trying to hit this database but to
>no avail, how should I go about troubleshooting this? It logs this every o
ne
>minute and it is on our Portal server.
>Thanks,
>Rob