It *seems* to be working for me.I have T-Mobile’s Arcadyan KVD21 5G Gateway with the radio turned off (thank you Nater Tater/YouTube) in front of my ASUS RT-AC68U in router mode connected by CAT5 cable. Yes, unfortunately this is a double NAT situation but prefer this setup to access point (AP) mode since although AP is simpler and avoids double NAT, I’d lose the ASUS’s firewall that way. Anyway, on the ASUS I set the IPv6 ‘Connection Type’ to Passthrough with ‘Connect to DNS Server automatically’ to Enable. After clicking ‘Apply’, I tested using IPCONFIG.exe from Window’s Command Prompt and IP6 addresses were showing. Then I went to https://test-ipv6.com/ and scored 10/10 for ‘IPv6 stability and readiness.’ The ‘Tests Run’ tab showed ‘ok’ for all 8 tests. I have several PCs and they all worked fine at this site, and all had different IPv4 and IPv6 addresses, The reason I said it *seems* to be working for me is that the https://solutions.t-mobile.com/support/ipv6 page claims ‘No,
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