[gptalk] Re: net admins, have your laptop users experienced this..

  • From: Steven <usersend@xxxxxxxxx>
  • To: gptalk@xxxxxxxxxxxxx
  • Date: Thu, 17 May 2007 11:09:00 -0400

I had this problem with IBM T40's, T60's and so on. I dont know if it was
just IBM laptops since it was an IBM shop thats all we had. I found the
problem came when a user would un-dock (putting the computer to sleep before
the un-dock or after), use another network such as wireless at home and come
back into the office *without restarting.* This seemed to only occur when
the computer was put to sleep. When ever their computer was powered off and
then docked and booted the problem did not occur.

One thing I did was set up profiles in the IBM access connections software
but it seemed to complicated for the users (HR people!!)  to switch between
network profiles. I ended up writing a small script that flushed and
re-registered DNS as well as renewing the IP information and either had the
user run it when they returned to the office or put it in their startup and
required them to log off and back on.

Hope this helps!

On 5/17/07, Darren Mar-Elia <darren@xxxxxxxxxx> wrote:

 I've seen this a lot. Unfortunately, there is no easy answer as its
generally up to the network driver to do the right thing before the user
logon processing occurs. One thing to check, are you disabling Fast Logon
Optimization on these (assuming they are XP)?

*From:* gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] *On
Behalf Of *Washington, Booker
*Sent:* Thursday, May 17, 2007 7:22 AM
*To:* gptalk@xxxxxxxxxxxxx
*Subject:* [gptalk] net admins, have your laptop users experienced this..

I have noticed that on occassion, my laptop users get the following errors
when they log on, maybe after redocking:

*Could not execute the following script scriptname.bat. The system cannot
find the file specified.*

And then just before that error in the log, I will see:

*Windows cannot obtain the domain controller name for your computer
network. (The specified domain either does not exist or could not be
contacted. ). Group Policy processing aborted.*

Now, the user will continue to log on(maybe with cached credentials, etc).
And they will even be able to access network resources where they have
permissions, but when this error occurs at logon, obviously, any mapped
drives that were scripted via batch file, or any other policies that are
suppose to run are thwarted.

I can't seem to figure out why it is so inconsistent.

Some more environment information.  These are IBM T40 laptops that use the
IBM Access connections manager to control the NIC activity.  It looks as
though there is some kind of hiccup in the network connection that occurs at
logon, but once the computer logs on, it will get the correct LAN ip address
and network information (As opposed to connecting to our wireless network,
which is the failover if the LAN connection is unavailable.)

Any thoughts?



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