[Samba] Windows 7 domain logon timeouts was Re: Domain login delays w2k8 R2

Åke Holmlund holm at informatik.umu.se
Thu Feb 4 18:00:58 MST 2010

Great!!! Your first suggestion (Set maximum wait time...) seems to
fix my problem! Now I can turn my attention som some other delays/
performace problems (not w2k8 related). And then there is the small
"printing from 64-bit clients" problem... Maybe I will get back to
those problems in another post ;-)

Thank's a millon!

Åke Homlund

--On torsdag, torsdag 4 feb 2010 18.54.56 +0000 "Cain, Marc" 
<mcain at sccd.ctc.edu> wrote:

> Samba 3.4.3 (ldap backend)
> Windows 7 Enterprise
> I've experienced the identical symptoms with Windows 7 ENT and found this
> workaround.
> When the following local GPO is left in its default setting Samba domain
> logons are delayed for 30 seconds: "Computer Configuration\Administrative
> Templates\System\User Profiles\Set maximum wait time for the network if
> the user has a roaming user profile or remote home directory."
> Enable this and set the value to 0 to work around this timeout.  The
> timeout does not occur when logging into an Active Directory PDC running
> Server 2008 R2.  I have not tested this with w2k8 R2 client.
> In addition, if the user's desktop is set to a solid background color
> logons of any kind (local, AD, samba) will be delayed by 30 seconds.  Set
> the background to any .jpg image or apply Microsoft's hotfix to work
> around this issue.  This is a cumulative timeout; that is, if the above
> timeout is in affect and the solid background color timeout is also in
> affect the delay is 60 seconds.
> I also experienced a 30 second timeout when I set the local GPO to "Run
> logon scripts synchronously".  This problem has inexplicably vanished and
> I can't replicate it though I don't see it listed in any Windows 7
> updates.  Might have been happening to me with Windows 7 PRO.  I'll check
> that if anyone is interested.  The fix was to apply an old Vista reg
> setting.  Can be Googled as "Vista Run logon scripts synchronously".
> Marc Cain
> On Feb 4, 2010, at 3:33 AM, Åke Holmlund wrote:
>> Not much. I attached a screendump from Wireshark. This capture is made
>> on the w2k8 machine. The traffic shown is sent to/from the ethernet
>> address of the w2k8 machine. Remote Desktop traffic is excluded
>> (the machine is used as a terminal server).
>> Regards,
>> Åke Holmlund
>> --On 3 februari 2010 14.08.49 -0800 Jeremy Allison <jra at samba.org> wrote:
>>> On Wed, Feb 03, 2010 at 03:19:36PM +0100, Åke Holmlund wrote:
>>>> Hello!
>>>> From what I can see, there is no DNS-traffic around the time of the
>>>> gaps and the DNS-activity I can see in onther places seems ok. There
>>>> is almost no network traffic and no CPU activity during the gaps so
>>>> it looks like some kind of timeout issue.
>>>> It may be of interest that, for the moment, IPv6 is beeing used.
>>>> Sometimes we also have quite a long delay if we click on the "View
>>>> computers and devices" link in the "Network and Sharing Center".
>>> Is there any other traffic coming out of the client box around the delay
>>> time ?
>>> Jeremy.
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