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Home » Microsoft » Windows Server » Active Directory » Weird LAN connection log on issue
Weird LAN connection log on issue [message #310203] Fri, 06 November 2009 18:25 Go to next message
Phantom  is currently offline Phantom  Korea, Republic of
Messages: 26
Registered: October 2009
Junior Member
We have two users at a remote office having this problem. When they
arrive at the office with their notebooks, connect their cables and
try to log on, they can't. But if they disconnect the wire, log on
with cached credentials, then re-connect their laptops to the wire,
they're fine and have full access to network resources. So far it's
only just these two guys; none of the others have reported this
problem.

This site has two servers. One is an old NT domain controller server
(we're running in Win2000 mixed-mode AD). The other is a brand new
W2K8 file and print server. Their DNS and points to servers in our
central office, which is a W2K3 shop. Not sure about their WINS, I
forgot to ask. Those old remote office servers used to act as WINS
servers, and are still configured to do that.

We're having one user send his laptop to us to see if we can duplicate
the problem here, since nothing seems out of order with their systems.
I'll know more on Monday or Tuesday. I just thought I'd throw this out
here first to see if this is a known issue under certain
circumstances, to be better prepared next week. If there's a better
newsgroup, please don't hesitate to tell me.

Thanks
Re: Weird LAN connection log on issue [message #310247 is a reply to message #310203] Fri, 06 November 2009 20:01 Go to previous messageGo to next message
rlmueller-nospam  is currently offline rlmueller-nospam  United States
Messages: 292
Registered: July 2009
Senior Member
"Phantom" <beckerbp@gmail.com> wrote in message
news:111fd76f-0e6e-4f6c-bd2d-2dee98dae2c2@u36g2000prn.googlegroups.com...
> We have two users at a remote office having this problem. When they
> arrive at the office with their notebooks, connect their cables and
> try to log on, they can't. But if they disconnect the wire, log on
> with cached credentials, then re-connect their laptops to the wire,
> they're fine and have full access to network resources. So far it's
> only just these two guys; none of the others have reported this
> problem.
>
> This site has two servers. One is an old NT domain controller server
> (we're running in Win2000 mixed-mode AD). The other is a brand new
> W2K8 file and print server. Their DNS and points to servers in our
> central office, which is a W2K3 shop. Not sure about their WINS, I
> forgot to ask. Those old remote office servers used to act as WINS
> servers, and are still configured to do that.
>
> We're having one user send his laptop to us to see if we can duplicate
> the problem here, since nothing seems out of order with their systems.
> I'll know more on Monday or Tuesday. I just thought I'd throw this out
> here first to see if this is a known issue under certain
> circumstances, to be better prepared next week. If there's a better
> newsgroup, please don't hesitate to tell me.
>
> Thanks

Is it possible their passwords got changed, but the change has not yet
replicated, and they cannot contact the PDC Emulator from the site?

--
Richard Mueller
MVP Directory Services
Hilltop Lab - http://www.rlmueller.net
--
Re: Weird LAN connection log on issue [message #311079 is a reply to message #310203] Sun, 08 November 2009 03:56 Go to previous messageGo to next message
meiweb  is currently offline meiweb  Germany
Messages: 2225
Registered: September 2009
Senior Member
Hello Phantom,

I assume th NT machine is a BDC in the domain? In the central office is the
DC with the PDCEmulator FSMO located? Was there a password change from the
user accounts according to your policies? Can you see the machines listed
in the DNS forward/reverse lookup zones?

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> We have two users at a remote office having this problem. When they
> arrive at the office with their notebooks, connect their cables and
> try to log on, they can't. But if they disconnect the wire, log on
> with cached credentials, then re-connect their laptops to the wire,
> they're fine and have full access to network resources. So far it's
> only just these two guys; none of the others have reported this
> problem.
>
> This site has two servers. One is an old NT domain controller server
> (we're running in Win2000 mixed-mode AD). The other is a brand new
> W2K8 file and print server. Their DNS and points to servers in our
> central office, which is a W2K3 shop. Not sure about their WINS, I
> forgot to ask. Those old remote office servers used to act as WINS
> servers, and are still configured to do that.
>
> We're having one user send his laptop to us to see if we can duplicate
> the problem here, since nothing seems out of order with their systems.
> I'll know more on Monday or Tuesday. I just thought I'd throw this out
> here first to see if this is a known issue under certain
> circumstances, to be better prepared next week. If there's a better
> newsgroup, please don't hesitate to tell me.
>
> Thanks
>
Re: Weird LAN connection log on issue [message #313905 is a reply to message #311079] Tue, 10 November 2009 16:58 Go to previous messageGo to next message
Phantom  is currently offline Phantom  Korea, Republic of
Messages: 26
Registered: October 2009
Junior Member
You are right, that is how things are set up. I'll have to ask the
machine name to check the DNS/WINS, or just wait 'til it gets here (I
still have yet to get my hands on the machine).

The only thing that has changed recently is we added, in group policy,
the complexity requirement to passwords, whereas before we were
relying on restricted failed password counts to lock out password
cracking attempts.

On Nov 8, 2:56 am, Meinolf Weber [MVP-DS] <meiweb@(nospam)gmx.de>
wrote:
> Hello Phantom,
>
> I assume th NT machine is a BDC in the domain? In the central office is the
> DC with the PDCEmulator FSMO located? Was there a password change from the
> user accounts according to your policies? Can you see the machines listed
> in the DNS forward/reverse lookup zones?
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!!http://www.blakjak.demon.co.uk/mul_crss.htm
>
>
>
> > We have two users at a remote office having this problem. When they
> > arrive at the office with their notebooks, connect their cables and
> > try to log on, they can't. But if they disconnect the wire, log on
> > with cached credentials, then re-connect their laptops to the wire,
> > they're fine and have full access to network resources. So far it's
> > only just these two guys; none of the others have reported this
> > problem.
>
> > This site has two servers. One is an old NT domain controller server
> > (we're running in Win2000 mixed-mode AD). The other is a brand new
> > W2K8 file and print server. Their DNS and points to servers in our
> > central office, which is a W2K3 shop. Not sure about their WINS, I
> > forgot to ask. Those old remote office servers used to act as WINS
> > servers, and are still configured to do that.
>
> > We're having one user send his laptop to us to see if we can duplicate
> > the problem here, since nothing seems out of order with their systems.
> > I'll know more on Monday or Tuesday. I just thought I'd throw this out
> > here first to see if this is a known issue under certain
> > circumstances, to be better prepared next week. If there's a better
> > newsgroup, please don't hesitate to tell me.
>
> > Thanks
Re: Weird LAN connection log on issue [message #313909 is a reply to message #310247] Tue, 10 November 2009 17:07 Go to previous message
Phantom  is currently offline Phantom  Korea, Republic of
Messages: 26
Registered: October 2009
Junior Member
On Nov 6, 7:01 pm, "Richard Mueller [MVP]" <rlmueller-
nos...@ameritech.nospam.net> wrote:
> "Phantom" <becke...@gmail.com> wrote in message
>
> news:111fd76f-0e6e-4f6c-bd2d-2dee98dae2c2@u36g2000prn.googlegroups.com...
>
>
>
>
>
> > We have two users at a remote office having this problem. When they
> > arrive at the office with their notebooks, connect their cables and
> > try to log on, they can't. But if they disconnect the wire, log on
> > with cached credentials, then re-connect their laptops to the wire,
> > they're fine and have full access to network resources. So far it's
> > only just these two guys; none of the others have reported this
> > problem.
>
> > This site has two servers. One is an old NT domain controller server
> > (we're running in Win2000 mixed-mode AD). The other is a brand new
> > W2K8 file and print server. Their DNS and points to servers in our
> > central office, which is a W2K3 shop. Not sure about their WINS, I
> > forgot to ask. Those old remote office servers used to act as WINS
> > servers, and are still configured to do that.
>
> > We're having one user send his laptop to us to see if we can duplicate
> > the problem here, since nothing seems out of order with their systems.
> > I'll know more on Monday or Tuesday. I just thought I'd throw this out
> > here first to see if this is a known issue under certain
> > circumstances, to be better prepared next week. If there's a better
> > newsgroup, please don't hesitate to tell me.
>
> > Thanks
>
> Is it possible their passwords got changed, but the change has not yet
> replicated, and they cannot contact the PDC Emulator from the site?
>
> --
> Richard Mueller
> MVP Directory Services
> Hilltop Lab -http://www.rlmueller.net
> --

That sounds plausible. We'll investigate that. That would be an intra-
server-to-server issue, or a WAN connectivity problem, or both?
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