My devices are IPv6 but, in dynamic IPv6 configuration it works poorly. In "bridge" mode my devices obtain IPv6 distributed by my ISP's modem/router. That suits me.

Thanks for your response, unfortunately my ISP does not provide pppoe credentials to force customers to use the preconfigured hardware they provide. So I have to use the “bridge” method.

Can you send me a screenshot of your setup so I can copy it to my P9 deco. Thanks

Whith the TP-Link p9, in the Ipv6 connection type /settings. You will find "Bridge" option like the DHCPv6 option.

@yves_i still in routeur mode

@LVDX I apologize for my previous post and explain the problem I encountered.I am a customer of a French ISP (SFR) and I connected my Déco system to my ISP's router. However, this router has DHCPV6...