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Windows 7 Event ID 2017 and shares dropping offline

Posted by Dmacleo , in personal, tech 02 May 2012 · 3,316 views

win 7 event id 2017 fileserver

If using Windows 7 as a dedicated file server you may see, especially from a samba (linux) type client, the shares (including mapped drives) drop offline as if client has lost authentication.
Check the event viewer for ID 2017 under system logs.
if you see this error:

Source: srv
Event ID: 2017
Level: Error
The server was unable to allocate from the system nonpaged pool because the server reached the configured limit for nonpaged pool allocations.

then there is a simple registry edit that tells the machine its to act like an actual server.

FIRST:
Make backup of whole registry to be safe.

SECOND:
find HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache and change its decimal value to 1

THIRD:
Find HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\Size and change its decimal value to 3

FOURTH:
Either reboot the whole system or open the services mmc snap in and restart the server service. really, just restarting whole system probably is the easiest.

I came across this as I have a WIn 7 64 box dedicated to streaming videos to clients on the LAN, after a few hours of playback (ranged from 4 to 20) I would lose connection to the file server from my WD TV Live Hub and a Buffalo HT90Lan extender.
Doing this quick edit seems to have worked very well.

Garfield

Feb 07 2013 02:17 PM

to restart the server, from the command prompt:

net stop server

net start server

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Dmacleo

Feb 07 2013 02:26 PM

yeah thats what I usually do as I have set my cmd shortcut to run as admin, needed since I am on domain and I had no way to verify it worked off domain (was not going to demote and promote a machine to test it) or would work with a non-admin user..

debated mentioning that when I wrote this but figured it would muddy the waters when a restart would work no matter domain status.

course now I think about it more I am not sure a non-admin on domain could even access registry or svc.msc.

should test that sometime I guess, but if on domain and user is an admin those 2 cmds are fastest.

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joe_li26

Apr 05 2013 03:08 PM

Thanks much.

nice, a very nice hack to make a windows 7 a true file server. I've compaired the above reg key on a win7 to a win 2008 r2 and the win 2008 r2 has the exact value in those keys.

there has been many post mentioned that "MS won't provide a fix, they want people to upgrade to win7" I think is more like they don't want use to use win7 but to use win servers.