Linksys certificate change?

[Alan Dayley]

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We have a WRT54GL running factory Linux firmware.  Last night it stopped
responding to the admin interface after the addition of a couple of MAC
addresses to the filter.  After a power cycle this morning, Firefox is
stating something about "Your certificate has the same serial number as
another certificate" when attempting admin interface connect.  Google
searches blame the Firefox certificate cache, saying it should be
cleared to allow the "new" certificate from the router.

My question is: Why did the certificate change?  Does the router change
certificates spontaneously or on some schedule?  Is this an indication
of a crack attempt or even a success?

I'm not willing to just accept the new certificate without understanding
what is really going on.

Alan

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