Logon

  • Thread starter Thread starter Darren Jones
  • Start date Start date
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Darren Jones

Suddenly this morning throughout all of our remote sites
users are randomly having login problems. Their systems
hang at "Applying Computer Settings" or loading personal
settings. Verbose logging shows the computers are having
trouble contacting the domain. The event logs show the
same thing. It happended randomly all over the place. One
user has a problem but another is just fine. It's like
some sort of DOS attack. Has anyone experienced this
recently.
 
This is a DNS issue.

Can you ping the DNS servers by name? by IP? Can you do an nslookup query on
a couple of DCs from a client machine?

--
--
Brian Desmond
Windows Server MVP
(e-mail address removed)12.il.us

Http://www.briandesmond.com
 
Yes. I was able to do all of that. The problem magically
went away on its own. Here's the strange part. It
happened sporadically. One guy can't get on but the guy
next to him gets on just fine. Then, everything suddenly
clears up.
 
Are the clients and the DC's in the same site?
or are you logging on to the domain from the remote site?
If it is the first I would look to see what the local DC's utilization
looks like.
If it is the second. I would check the bandwidth from the DC to the remote
site.
Also is there anything else running like a virus dat file update or some
such thing while the users are logging in?
(e-mail address removed)

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| From: "Darren Jones" <[email protected]>
| Sender: "Darren Jones" <[email protected]>
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<#[email protected]>
| Subject: Re: Logon
| Date: Fri, 30 Jan 2004 07:28:10 -0800
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|
| Yes. I was able to do all of that. The problem magically
| went away on its own. Here's the strange part. It
| happened sporadically. One guy can't get on but the guy
| next to him gets on just fine. Then, everything suddenly
| clears up.
|
| >-----Original Message-----
| >This is a DNS issue.
| >
| >Can you ping the DNS servers by name? by IP? Can you do
| an nslookup query on
| >a couple of DCs from a client machine?
| >
| >--
| >--
| >Brian Desmond
| >Windows Server MVP
| >[email protected]
| >
| >Http://www.briandesmond.com
| >
| >
| >"Darren Jones" <[email protected]>
| wrote in message
| >| >> Suddenly this morning throughout all of our remote
| sites
| >> users are randomly having login problems. Their systems
| >> hang at "Applying Computer Settings" or loading
| personal
| >> settings. Verbose logging shows the computers are
| having
| >> trouble contacting the domain. The event logs show the
| >> same thing. It happended randomly all over the place.
| One
| >> user has a problem but another is just fine. It's like
| >> some sort of DOS attack. Has anyone experienced this
| >> recently.
| >
| >
| >.
| >
|
 
I have Axactly the Same problem! It happend very vast in my situation,
I have one site 3 DC's and one of the DC's is on an other location
with its own DNS server. But sometimes the users logon very slow (3
minutes or so) the strange thing is that the logon process goes slow
sometimes on the head location to since the problem happened on the
remote location.

I have no trouble with nslookup and i can ping everyting on name and
or ip adres.

the system log gives a Userenv error. "can't find domain controller
for this network"
 
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