@Cyero If you get 10/10 then your IPV6 is working correctly, if speed is still slow then its an issue with the Deco I would think.

@Cyero Edit: Your last screen snip looks ok to me? Go to https://test-ipv6.com/ and see what you get? I'm with BT full fibre, they use a PD of 56 however I see a PD of 64 on my LAN side, IPV6...

@Cyero no worries, and for "assigned type" have you tried "DHCPv6" instead of "SLAAC+RDNSS"?

@Cyero Just a thought, have you tried to change IPV6 internet settings "Get IPV6 address" from "auto" to "non address" to see if that makes a difference? Cheers

@David-TP Thank you, sorry think there is some confusion as this thread actually covers 2 issues now: 1) Unable to connet to Deco issue on App (my original post) - I'm aware the engineer could not...

@David-TP Any updates on what the engineers said please RE: the X75 Pro showing devices as wired or not showing at all on the Deco app? BTW I've changed my network back to my X60 as main DECO. Thanks