Juniper Networks has made repeated attempts on the wireless LAN market, with limited success. Its 2010 purchase of enterprise WiFi pioneer Trapeze Networks failed to deliver the hoped-for market share boost against Cisco (it generated just under $50m a year from 2011-2013 and then fell away); HPE acquired Juniper’s next strategic WLAN partner, Aruba; and its latest (and most promising) alliance, with Ruckus Wireless, ended when that firm was snapped up by Brocade in 2016 (and subsequently sold on to Arris). Undeterred, Juniper is making its fourth attempt with plans to buy WLAN start-up Mist Systems for $405m, a deal which should close in the second quarter. Juniper CEO Rami Rahim wrote in a blog post that the acquisition would…