Google “BEFSR41”. Most of the issues cited in the Linksys usergroups I found were X-box (or other game) related, and what was really weird was that AFTER an X-box session crapped out, they couldn’t get the router to work again! (I am a totally ordinary user, no videogames, just want to have one or more computers hooked up just so I don’t have to shut one or the other off & reset the modem) Which I found very strange. At some point I just decided I couldn’t spend any more time on it, which was essentially the consensus of anyone who had gotten fed up w/the Linksys.
Can’t blame the X-Box ~ as the oldest child has been using that for the past three months.