A guest network provides visitors with internet access while keeping your main network and devices private. The Xiaomi Mi Router AX1800 supports guest networks via its web interface and mobile app; this essay provides a clear, fixed step-by-step guide to create a secure guest network, explains configuration choices, and offers troubleshooting and security tips.
192.168.31.1 (default)If the standard toggles don’t fully isolate your guest network, the AX1800 runs a Linux-based OS. You can SSH into it (if developer mode is enabled) and add a manual iptables rule.
Warning: This voids some warranty protections and requires technical skill. create guest network on xiaomi mi router ax1800 fixed
root@192.168.31.1.iptables -I FORWARD -i br-guest -o br-lan -j DROP
iptables -I FORWARD -i br-lan -o br-guest -m state --state NEW -j DROP
/etc/firewall.user.This manually blocks all traffic between the guest bridge and the LAN bridge.
After the fix, the guest network appears again—boring, functional, invisible. Your friend connects without comment. They scroll TikTok. You feel a small, absurd pride. Creating a Guest Network on Xiaomi Mi Router
But the deeper fix isn’t technical. It’s psychological. A broken guest network forces you to confront a question: Who do I want inside my digital home? Every guest password you hand out is a key. Every IoT device you refuse to isolate is a potential traitor. The AX1800, once tamed, lets you maintain the beautiful fiction that your data is yours alone—while a stranger sits on your couch, happily streaming 4K through a door you deliberately left ajar.
The guest network, fixed, is a monument to controlled vulnerability. It says: You are welcome here, but not everywhere. You can use my water, but not my diary. IP address : 192
And that, perhaps, is the most honest relationship technology can broker.
If you want the IP range fixed (not changing after router reboot):
192.168.32.100 – 192.168.32.150http://192.168.1.1 (or the IP address printed on the underside of the router).admin for both).