Re: Account Lockouts
From: kevinb (kevinb@centralchurch.com)
Date: 12/20/02
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From: "kevinb" <kevinb@centralchurch.com> Date: Fri, 20 Dec 2002 14:11:54 -0800
If a NIC is out of sync with the hub, you will usually get
no connection whatsoever. A hub talking at 10M to a NIC
talking at 100M would result in both of them rejecting
packets entirely, or if not, some very confused
communications (meaning a lot of jabber). As for
autoneg., a very high percentage of autonegotiations
between NICs and hubs results in a connection speed of
10M, when you would prefer it to be 100M, but this
shouldn't result in bad password attempts. The
misconfiguration would result in a slow network with lots
of collisions, not bad password attempts.
The connection between the server and the client can only
be out of sync if they are connected by a crossover cable
(or possibly a very dumb hub), both are forced to their
connection speed, and the speeds are different. They do
not negotiate speeds between themselves and a client if
you are using a switch. A connection goes from the server
to the switch, which then forwards the packet from the
switch to the client. The packet can go from the server
to the switch at 100M, and then from the switch to the
client at 10M, and get there just fine.
>-----Original Message-----
>Thanks, I was waiting for a logical explanation like
that. If the switch is
>unmanaged and dumb, as mine are could it be the NIC on
the server and the
>NIC on the client not being in sync?
>
>Jason
>"Geoffrey Hixon" <ghixon@aiag.org> wrote in message
>news:0b4301c2a76b$6a4b1540$8bf82ecf@TK2MSFTNGXA05...
>> I had the same problem and found out that it was my
>> switch that was causing the problem. If the NIC and the
>> switch are set to auto negotiation this could be causing
>> the problem. Try forcing the switch port and the NIC to
>> the same (100/Full or what ever you use) and see if this
>> solves the problem.
>>
>>
>> >-----Original Message-----
>> >I get random account lockouts on two different
>> networks. They are running a
>> >combination of Windows 2000, Windows NT and Windows 98
>> accounts. They are
>> >connecting to a Windows 2000 server with active
>> directory installed, there
>> >is also an exchange 5.5 server on one of the networks.
>> I was wondering what
>> >could be causing these lockouts (other than bad
password
>> attempts).
>> >
>> >
>> >.
>> >
>
>
>.
>
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