In most cases no. The BEFSR41 ver.2 router has an internal power switching device (AC to DC). This generates a little bit of heat and makes a high pitched squealing noise. The router may even have a slight odor to it. All of these are nothing to worry about. If the routers noise, heat or odor seems unusual, for example you can hear the router from several feet away, the router feels hot to the touch and not just warm and the odor is unusually strong return the router to Linksys for a replacement via this site.

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by Ryan F edited by Lanik
last modified: 2005-06-22 00:48:52