Disappearing Client for Microsoft Networks

Ok here is a strange one.  we have Dell equipment in the company with Broadcom Nic's.  We have seen issues where a user will come in logoon to the network and launch Outlook surf the internet everything looks good till they try to access a network resource.  Such as File share or printer.  If you open the properties of the network connection the Client for Microsoft Networks and the File and Printer sharing for Microsoft Networks are unchecked.  The only way we have found to get them back is to uninstall the Network devices in Device manager and reboot.  Then XP finds them and all is back to normal.  Has anyone seen this and do you know what the problem is??

Thanks
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heincpaAsked:
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moorhouselondonConnect With a Mentor Commented:
It's contagious.

You have the one Hardware Profile on the home pc?

Have you installed the latest Broadcom drivers from Dell's website?
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johnb6767Commented:
These are domain or workgroup systems?
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qz8dswCommented:
Is it an issue with the computer/s or users?
I.E are the same users able to logon to another computer and it works as it should or is the user always getting this?
Do they have roaming profiles?

Terry
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heincpaAuthor Commented:
It is a computer issue, the reason I know is it happens on my laptop also.  We do not have roaming profiles.  It happens almost daily for me.  If I work from home on my wireless I can almost be sure I will have to reload the adapters at work.
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moorhouselondonCommented:
Go into Control Panel, System, Hardware.  There's not more than the one Hardware Profile defined, is there?  Unlikely, but then again, unusual problem.
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heincpaAuthor Commented:
Yes there is a Docked Profile and a Undocked profile.  
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moorhouselondonCommented:
Try removing the profile that is less likely to be used, and use the laptop in that way for a couple of days, see if that cures the problem.  If so, then I am sure that we can find a workaround.
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moorhouselondonCommented:
I'm wondering if this is the sort of problem you are up against:-

http://support.microsoft.com/KB/910623
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heincpaAuthor Commented:
I will look into it, the one issue I see wrong here is I have a Dell Desktop also with broadcom card that shows the same issue.  Totally different network, as this is my home PC.  Just started seeing it happen on that about a month ago.

Thanks
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heincpaAuthor Commented:
I will verify drivers and yes only one hardware profile on Home PC.  Now I was just told that one of our techs thinks it might have something to do with our Citrix SSL VPN.  He see's the problem when he connects to the VPN from the office and then disconnects.  Our other Tech never has this issue.
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heincpaAuthor Commented:
It turned out to be our Citrix VPN we had to remove the Wins server from the VPN server and then it went away.
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