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Why the expiring of the page so frequently all of a sudden?

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I have been experiencing this recently, when doing research , the page expires and I must start again. How can this be eliminated?

I have been experiencing this recently, when doing research , the page expires and I must start again. How can this be eliminated?

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Does this occur while you are working within the same page, or when you use the Back button?

For the Back button problem, please see this thread: Firefox 32 always gives "Document expired" every single time I hit the Back key to return to search results.

For other situations, could you try the steps in this thread: I keep getting a "Your Session has expired or cannot be retrieved. Please click below to log back in and try again." when I try to use Cisco netacad.

Do either of those help?