Temperature Sensitive?

Since I was successful at turning this 8-port wired Linksys router into a bridge, I thought that I would see if perhaps I could beat the Belkin that failed on me a couple of days ago back into submission.  Sure enough, it is currently working.  It claims that the firmware dated 2002 is the latest version for this router!  I have it configured identically to the current year Belkin router I borrowed from my daughter, since I expect whatever caused it to fail two days to cause it to fail again.  But I confess that it is better to have a backup, maybe even an unreliable backup, than to not have anything at all sitting around.