@David-TP have the same problem, and it look like the problem may depend on isp level 2 routing. During the last year my Deco E4R has got IPv6 when the ISP has tuned their level 2 settings. Can the...

@TP-Link We have partly the same problem with our E4R units, and the light is green on all of them. The blocking of ICMPv6 results in some servers reverting to IPv6 for part of its traffic. Have...