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We run a Radius server (Windows Server 2008 R2 running NPS). My goal is to push out GPOs to wireless users with the network information. I am successfully doing this with Windows 7 clients, iOS clients, and Android clients, but Windows XP is throwing fits. I am using Ubiquity UniFi APs:

When creating the GPOs for this, I mirrored all of the settings I used for Vista and W7 clients to the settings for my XP clients, but XP will not connect. I am not given any error messages; XP just sits there. I have also tried manually creating a wireless profile on the XP machines, and I can't get them to connect that way either. My XP test client is running SP3. I've tried everything I can think of, and I've tried to find info online.

Any ideas?

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Anybody have any suggestions? – Luke Jan 3 '12 at 15:08
WinXP WPA2 Updated? – Chris S Jan 3 '12 at 20:51
Have you looked in the event log? There should definitely be errors/warnings there. – MDMarra Jan 3 '12 at 21:16
I can't apply the update because I am already running SP3. When trying to install, it says the service pack I am running is newer than the update. So, I assume that hot fix was part of the service pack. – Luke Jan 4 '12 at 1:39
The event log on the NPS server isn't logging anything. – Luke Jan 4 '12 at 2:07

Turns out it was a problem with the device driver. Windows wasn't showing WPA2 as an option in the wireless setup. I uninstalled the wireless adapter in Device Manager and let Windows recognize and reinstall it. All is well now.

Thanks to all for your help! Luke

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Great to hear you've resolved this. Be sure to mark your answer as "accepted". – jscott Jan 4 '12 at 2:12

Add the Machine Certificate of the NPS Server to the trusted List, then also XP will join :-) ...or the Certificate you are using in NPS... look it up, you can configure it.

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Do not post links advertising your site/business in answers. That's what you have a profile for. If you post good answers, people will view it. If you post rubbish that doesn't answer questions (like this), people won't. – MDMarra Jan 3 '12 at 21:16
I unchecked the option to 'validate certificate.' If that is unchecked, I don't need to add the certificate do I? – Luke Jan 4 '12 at 1:43

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