<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 10 Jun 2015, at 06:33, John Mann <<a href="mailto:john.mann@monash.edu" class="">john.mann@monash.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi,<div class=""><br class=""></div><div class="">We have noticed that Samsung Android phones and tablets on dual-stack IPv4/IPv6 WiFi experience delayed Google notifications when the screen is off.</div><div class="">This issue is blocking the enabling of IPv6 across our large campus WiFi network.</div><div class=""><br class=""></div><div class=""><div class=""><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)" class="">Has anyone else experienced this behaviour and escalated this to Samsung, or found a fix?</span></div></div></div></div></blockquote><br class=""></div><div><br class=""></div><div>I see that. I don’t think the problem is confined to Samsung or that it can be completed solved in isolation from fixing wireless AP router behaviour. </div><div>At the edge of the WiFi network I also see the IPv6 connectivity dropping while IPv4 stays up. I’ve a ZyXEL home router that sends periodic RAs every 15 seconds </div><div>and a Huawei home router that sends them every 1800 seconds. </div><div><br class=""></div><div>It isn’t production ready yet.</div><div><br class=""></div><div>Ross</div><div><br class=""></div><div><br class=""></div><br class=""></body></html>