Apple's 802.11ac wireless launch has been somewhat less than perfect. In an effort to diagnose problems reported in some new Apple devices sporting 802.11ac compatibility, the Cupertino manufacturer has instructed its service centers to "capture" customers' computers if they are suffering from Wi-Fi connectivity issues. Additionally, technical research has been published noting that Apple uses a sub-optimal network setting built into the wireless protocol, limiting the connectivity speed of the new standard at least temporarily.