Disable IPv6 – Unifi
- WAN IPv6 = Disabled
- All Networks IPv6 = Disabled
- No IPv6 addresses on clients
WAN
Disable IPv6 on EACH Network:
- Network → Internet → ISP (Wan1) & ISP2 (Wan2)
- IPv6 Configuration: Disabled
LAN
Disable IPv6 on EACH Network:
- Network → Networks → Name #1
- IPv6 interface type: none
Quality assurance
Apple devices cache IPv6 aggressively, you may need to reboot the device to remove a tale IPv6 route
On an endpoint:
- Disconnect Wi-Fi and Ethernet connectivity
- Reconnect Wi-Fi and Ethernet connectivity
Go to https://test-ipv6.com