I bought a BEFSR81 and worked fine for about month and a half.Then begun to experience connection drops 2-3 minutes, every day more frequently. One night it dropped connection 3 or four times within an hour and then WAN port stopped working. It was connected to a Cisco 575 VDSL provided by my ISP. Extensive check out with ISP tech support pointed to the BEFSR81 router.I returned it to my supplier for tech support but couldn't make it work.I bought a second BEFSR81 and guess what...never worked either!Then I bougth a D-LINK DI-604 and a BEFSR41.BEFSR41 had again a connection drop at the fourth day, I had to reset it.D-LINK is been working solid, not even a glitch. Hope this be useful for Linksys buyers, since, for worst, Cisco -now the owner- said not to support Linksys gear.I emailed LINKSYS support at support.la@linksys.comNo replay at all.