What is CGNAT and why does it affect me?
CGNAT lets multiple customers share one public IPv4 address. Normal browsing works, but inbound hosting, some games, VPNs and port forwarding may not.
Router WAN IP vs public IP; service requirement; IPv6.
Network team for public-IP requirement.
Show the technical detail
On a managed Wi-Fi plan
Confirm GIQ access-network policy and offer public/static IP only where available.
On another provider's router
Ask that ISP whether it uses CGNAT and offers public IPv4/IPv6.
What to be careful of
Do not state CGNAT is a Wi‑Fi fault.
Where this comes from: Official · see the original source ↗ · Draft—technical review · checked 17 August 2026