https://devzone.nordicsemi.com/f/nordic-q-a/12749/cloud-mqtt-example-issueI follow this instruction to turn Raspberry Pi into an IPV6 router on IPV4. My raspberry pi works well after I add nameserver to /etc/resolv.conf. But other device in my NAT network can only get 17 scores in ipv6-test.com. The DNS6 + IP4 and DNS6+IP6en-USTelligent Community 13Tue, 29 Mar 2016 08:30:10 GMThttps://devzone.nordicsemi.com/thread/48435?ContentTypeID=1Tue, 29 Mar 2016 08:30:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:65e87b98-2189-4c14-abde-6d9b91928facKrishna Shingala<p>Hi Chris,</p> <p>The symptom you report is most often observed when a valid &quot;global&quot; address is not assigned to the kit (through radvd on Raspberry PI). You will observe the reason for failure would be &quot;routing error&quot;.</p> <p>If this is not reason, posting the reason for failure would help investigate the issue further.</p> <p>Hope this helps!</p> <p>Regards, krishna</p><div style="clear:both;"></div>