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Windows 7 Wireless Group Policy Settings Disappearing

Posted on 2014-12-10
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Last Modified: 2014-12-20
We have Lenovo netbooks (x131e, x140 11e etc) and we set the wireless connections via group policy by first running gpupdate when wired and then unplugging and all works wonderful. At random though systems prompt users with the "No Logon Server Available" message when they attempt to logon. A local login then shows that the wireless settings are gone and need to be set back up either manually or by plugging back in and running gpupdate. Why are the settings being removed?
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Question by:lonekawboy
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by:rharland2009
ID: 40494568
Are these imaged netbooks, or do they still have the preloaded wireless management software from Lenovo installed?
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by:lonekawboy
ID: 40496064
They are imaged systems using Microsoft imaging solutions.
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by:rharland2009
ID: 40496077
When you have a computer that fails this way, plug it back into the wired network, and run gpresult, does it give you the GPOs you expect for the user and computer?
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by:lonekawboy
ID: 40496132
Yes, the fix is to plug it in and run gpupdate and all is well. Event viewer shows nothing that stands out except for the application of group policy starts to fail due to lack of access to a domain controller and never recovers. I am wondering if it would be best to not use group policy to set wireless policy?
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by:rharland2009
ID: 40496148
Not gpupdate - I mean gpresult. In other words, before you run gpupdate, does the computer still have the GPOs that you expect in place?
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by:lonekawboy
ID: 40496234
Yes. I have a gpo called wirelesspolicy that when running gpresult /r I see it in the list of applied group policy objects.
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by:rharland2009
ID: 40496245
Okay. So, your GPO is still in place, and yet the wireless settings are gone. This is a computer GPO, right?
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by:lonekawboy
ID: 40496256
When I output the gpresult report I see the policy settings within the report but these settings don't exist in the Wireless configuration of the system. And as you would expect an attempt to run gpupdate gives success on the user (as it is local) and fails on the computer due to lack of network connectivity.
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by:rharland2009
ID: 40496266
This is from 2k3, but may be accurate for your situation...

http://technet.microsoft.com/en-us/library/cc781050(v=ws.10).aspx

If the computer password expires, and the comp can't authenticate, then plugging it in would resolve the situation.
Check your computer password expiration - see if it's set to the default, and try extending or disabling expiration.
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by:lonekawboy
ID: 40496311
The default on this is 30 days and we have systems that work one day and fail the next. Extending these days out to say 60 would simply cause what is occurring to happen later but it would still occur if this was in fact the problem.
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by:rharland2009
ID: 40496328
Understood. If you wanted to test, you can disable.
Do you use computer certificates?
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by:lonekawboy
ID: 40496942
Update. When you press and hold the power button and force a shutdown of the system it will (sometimes) wipe out the wireless settings so the next time the system boots they aren't available.
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by:rharland2009
ID: 40496992
I didn't know that.....strange! It might line up with the intermittent nature of the settings loss.
Do you have clients that never have a problem with the settings being lost?
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lonekawboy earned 0 total points
ID: 40500992
Turns out it was a combination of things. The fix looks to be the removal of the "number of cached logins" from 0 to any number greater than zero. From what it looks like this along with the hard shutdown of a system causes the wireless policy to be wiped out and with no connection back to the DC the policy is never applied and cannot be until plugged back in or wireless policy manually entered.
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Author Closing Comment

by:lonekawboy
ID: 40510551
No one gave me a solution that fixed my issue and I figured it out on my own.
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