I have a PPPoE link from my provider, DIGI Romania, and if I click disconnect session and reconnect in 90% of cases the IPv6 address gets assigned correctly and usable. But after a reboot (power failure or scheduled reboot for example), only the IPv4 address gets assigned, IPv6 address no. The router displays in this case the LL address (FE80: class). The weird thing that happens is that the GUA /64 range gets assigned correctly which leads to timeouts until the browser catches on that the ipv6 it has is unusable (which is the actual pain point). Disabling IPv6 does work as a workaround, of course, but it'd be nice to actually fix the issue and be able to use IPv6. Any advice?