Interface times out very quickly

Interface times out very quickly

Hello:

We have just implemented ELA and currently have to manage it locally on the server using localhost on Internet Explorer.  It currently takes just over a minute for the initial login screen to come up and once in the admin interface, it times out very quickly.  If I don't do anything in the interface for around 45 seconds, the next time I click on something it can pause for another 30 seconds and present me with a page not found error.  If I then click refresh, it takes me where I was going.  Can anyone think of what could be wrong?  I haven't changed any of the default settings.  Thanks.
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