My Yubikey is not lighting up when I push it. What do I do?

Test your Yubikey here -- http://demo.yubico.com/  

If it is failing, then you will need to contact Yubikey directly on a replacement - http://www.yubico.com/faq/my-yubikey-is-not-working-what-should-i-do/

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Still Having Trouble?
Look for answers in our vibrant customer-to-customer community help forums.
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