bilbo_b
if you upgrade your #Unifi Network Appl to 10.4 and have dual stack Deutsche Telekom network configured to use #DHCPV6, you may lose IPV6 connection in your networks. You have to go to the properties of the networks, to enable “Prefix delegation” in the bottom section for each network you want to use IPV6

With DHCPV6 it is “normal” that no IPV6 address shows up in the “Internet” line IPV6 column or the Provider Part of the dashboard, as DHCPV6 does not provide an address for the WAN Interface
May 20 at 12:36pmWeb
Show threadbilbo_b1d ago

you could work around these by choosing SLAAC instead of DHCPV6 (not thoroughly tested, but read you’d have to somehow take care of DNS name resolution yourself).

My setting for DoH (DNS over https) seems to have gone and needed reconfiguring (but that may have been my doing / fault, not definitely sure it’s caused by the update)

edit: changed to SLAAC for the WAN interface and DNSCrypt by quad9 and am happy. Additional benefit: my WAN IF V6 address is shown in dashboard and settings->internet