Windows June 2011 Update: Breaks network share?

Suddenly a WinXP client machine couldn't see a NAS shared by workgroup it has been accessing for years. Other machines - Win7, Win2003, and WinXP - could still see the NAS.

I investigated "everything" without finding a clue. Finally I did a system restore to Jun. 14th morning ... and voilá, the network drive was back!

Anyone else have seen this? I've searched on Google hi-and-lo without finding anything at all which I find a bit strange.

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Gustav BrockCIOAsked:
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Which update?
Gustav BrockCIOAuthor Commented:
The automatic updates for June 2011.

K, I thought you were asking about a specific KB hotfix..... Kinda general....

Enumerate the list of installed Hotfixes using WMI

wmic qfe list full /format:htable >C:\hotfixes.htm

Can you post the report please so we can at least know which ones we are talking about?

Microsoft security updates for June 2011

But Im sure that more was installed....

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Gustav BrockCIOAuthor Commented:
Well, to get the machine back in business we had to do something and System Restore came to rescue. A rollback to Jun. 14th morning just prior to the update removed the issue.

I'll see what level of logs we are able to pull as to your guide.


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Gustav BrockCIOAuthor Commented:
This seems to be have been tracked down to the KB2536276 update. It breaks unencrypted Samba from at least Windows XP.

Does this make sense to you?

Don't know how that explains issues in network without Samba.

Gustav BrockCIOAuthor Commented:
Gustav BrockCIOAuthor Commented:
Did a rollback (cancel) of the System Restore and the sharing issue returned.
Did a uninstall of KB2536276 and reboot and the issue was removed.
So KB2536276 is the source of this misbehaviour.

Thanks for your debuggin input which I didn't know about.

Gustav BrockCIOAuthor Commented:
Remove the KB2536276 update until further notice.
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