Create Guest Network On Xiaomi Mi Router Ax1800 Fixed May 2026

The AX1800 sometimes fails to route Guest VLAN traffic to the WAN DNS. It tries to use the router’s own internal DNS (127.0.0.1), which guests cannot access.

The Xiaomi Mi Router AX1800 is a powerhouse for its price, offering Wi-Fi 6 speeds and robust mesh capabilities. However, one feature that often frustrates users is the Guest Network . Many users report that after setting it up, guests cannot connect, the internet is inaccessible, or the network disappears after a reboot.

The AX1800 has a known driver conflict with 5GHz Guest mode when using WPA3 or 160MHz bandwidth.