Why do I have an IPv6 address as well as IPv4?
Dual stack lets devices reach services over either protocol. IPv6 uses a different address format and is normal when supported.
WAN prefix; client addresses; DNS; reachability.
Network engineering for protocol-specific failure.
Show the technical detail
On a managed Wi-Fi plan
Use supported platform configuration; diagnose per protocol.
On another provider's router
ISP IPv6 availability varies.
What to be careful of
Do not disable IPv6 as a generic fix.
Where this comes from: Official · see the original source ↗ · Draft—technical review · checked 17 August 2026