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I'm running VirtualBox 3.1.0 on a Windows XP host with an Ubuntu guest. I have a Lenovo T60 laptop which uses an Intel Pro/1000 PL network card. My wireless interfaces disappeared. They don't even show up in Device Manager.

I have tried uninstalling VirtualBox but I still don't have any wireless interfaces. I have tried installing other versions from 3.0.2 - 3.0.12 without success. I have tried disabled and renabling the devices in Device Manager without success.

Any ideas on what else I can try?

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State your exact operating system and retag your question, please. Also edit to mention the specific hardware. – CarlF Dec 7 '09 at 3:41

I uninstalled Virtualbox. Then I went into Device Manager and uninstalled my Intel Pro/1000 PL and Intel Pro/Wireless 3495ABG devices. Then I rebooted. Plug and Play reinstalled them and everything came back. I can connect and I can see my network interfaces in Device Manager again.

I also got VirtualBox 3.1.0 to work. See this thread for additional info:

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