> In fact, I am going to continue with said H.E. IPv6 tunnel, just without > advertising it to the network (RA / DHCPv6). I will have to statically > configure IPv6 on things that I want to use it on.
There we get to the heart of things. The problem is not with IPv6 or your ISP (*), but with the Netflix software. Doing happy eyeballs and selecting an IP address out of the ones available that they *then* reject because they don’t like it: beyond broken, just plain stupid. Netflix should be using only those IP addresses that it likes (**). Grüße, Carsten (*) Well, an ISP that does not offer 128-bit IP *is* a problem, but not the one that led to this thread. (**) if it needs to deal in address liking at all, which is also fundamentally broken, but seems to be an addiction of their specific industry.
