eero Wi-Fi:
Set Up Right the First Time

Before You Buy — How eero Mesh Actually Works

Mesh vs. a single router

A traditional router covers one area — walls, floors, and distance eat the signal. eero works differently: multiple nodes communicate with each other and hand your devices off seamlessly as you move through the house. From your phone's perspective, it's always on one network with one name. The handoff is invisible.

This matters most in homes with multiple floors, thick walls (concrete, brick, older plaster), or layouts where a single router in one corner can't reach the other end without degrading.

eero Max 7 vs. eero Pro 7

Both support Wi-Fi 7 — the current generation standard. The difference is throughput and radio configuration:

• eero Max 7: Four radios (2.4GHz, two 5GHz bands, 6GHz). Up to 9.4 Gbps total throughput. Two 10 Gbps wired ports. The strongest node eero makes — best suited for the gateway position or rooms with many devices.
• eero Pro 7: Three radios (2.4GHz, 5GHz, 6GHz). Up to 4.3 Gbps total throughput. Two 2.5 Gbps wired ports. Excellent for satellite nodes — more than enough for most rooms.

You don't need all Max 7 nodes. Mixing is fine — and often the smarter call. Put a Max 7 at the gateway (where your ISP connection comes in) and Pro 7 nodes elsewhere. The gateway handles the most traffic; satellites just need to move data to and from nearby devices.

Wired backhaul — what it means and why it matters

Backhaul is how eero nodes talk to each other. By default, nodes communicate wirelessly — which works, but each wireless hop cuts available bandwidth roughly in half. Wired backhaul runs an Ethernet cable from each node back to a switch or directly to the gateway. Every device connected to that node gets the full wired speed without sharing wireless airtime with the backhaul traffic.

If you have Ethernet runs in your walls, use them. If you don't, wireless backhaul still works well — especially with Wi-Fi 7's dedicated 6GHz band, which eero can reserve exclusively for backhaul.

Thread border router — built in

Every eero (including Pro 7 and Max 7) has a Thread radio built in. Thread is the low-power mesh protocol used by newer smart home devices — Apple HomePod, Eve sensors, Level Lock Pro. Having eero nodes throughout your home means Thread coverage everywhere, without needing a separate hub in each room.

Setting Up eero with AT&T Fiber

AT&T's setup: IP Passthrough, not bridge mode

AT&T Fiber uses a proprietary BGW320 or BGW210 gateway that manages the fiber authentication. Unlike cable modems, you can't bypass it entirely — AT&T requires their device to stay connected to the fiber wall jack. But you can use IP Passthrough to route your public IP address directly to your eero, so eero handles all your routing and the AT&T device steps back.

This eliminates double-NAT — the problem where your devices are behind two separate routers, which causes slowdowns and breaks features like Apple Home remote access, game multiplayer, and VPN connections.

How to configure IP Passthrough

1. Connect your eero gateway to the AT&T device's LAN port via Ethernet. Power on.
2. On a device connected to AT&T's Wi-Fi (temporarily), open a browser and go to 192.168.1.254 — this is the AT&T admin panel.
3. Log in. The password is on the back of the AT&T device (usually printed as "Device Access Code").
4. Navigate to Firewall → IP Passthrough.
5. Under "Allocation Mode," select DHCPS-fixed.
6. Under "DHCPS-fixed," select your eero's MAC address from the dropdown. (The eero app shows your gateway's MAC under its device details.)
7. Save and reboot the AT&T device.

After rebooting, your eero will receive the public IP address directly. The eero app should show your internet connection as active. You can verify by checking that your external IP in the eero app matches whatismyip.com when connected to eero's Wi-Fi.

Initial eero setup

Download the eero app → Create account → Set up network → Scan the QR code on your gateway node. The app walks through connecting the gateway to your modem or AT&T device, naming your network, and setting a password. Then add each satellite node one at a time — the app uses Bluetooth for the initial pairing of each node.

If you're placing nodes that will be hardwired, run the Ethernet cables first and connect them before powering on the nodes. eero detects wired connections automatically and uses them as backhaul without any extra configuration.

Settings Worth Changing First

The eero app — what's actually useful

The eero app is minimal by design. The home screen shows network health, connected device count, and a speed test button. The most useful sections:

• Devices: every device on your network, with nickname, connection type (2.4GHz / 5GHz / 6GHz / wired), and current download speed. Tap any device to assign a profile or pause it.
• Network Settings: your Wi-Fi name, password, and band steering settings.
• Advanced Settings: DNS, DHCP reservations (give specific devices a permanent IP), UPnP, port forwarding.

DHCP reservations — worth doing early

Smart home devices work best on stable IP addresses. Hubs (Aqara, iSmartGate), network-attached storage, and printers are all better off with reserved IPs so automations and integrations don't break when devices reconnect after a power outage. In the eero app: Settings → Advanced → DHCP & NAT → DHCP Reservations → assign IP by MAC address.

eero+: what's included

eero+ is a $9.99/month subscription that adds features not available in the base app:

• Advanced Security: blocks known malicious domains at the DNS level — malware, phishing sites, trackers. Runs on every device on your network automatically, including smart home devices that can't run their own security software.
• Ad Blocking: blocks ad-serving domains network-wide. Works on every device including Apple TV and smart TVs that don't support browser extensions.
• Content Filters: category-based filtering (adult content, gambling, etc.) for specific device profiles.
• 1Password family plan: included at no extra cost with eero+.

Advanced Security is the standout feature — your smart home devices often can't be individually secured, and having a network-level block for known bad domains adds a layer of protection without any per-device configuration.

What's next

This covers the foundation. The full guide goes deeper across 11 chapters: eero Max 7 vs Pro 7 in detail; planning your node placement and wired backhaul topology; AT&T IP Passthrough step by step; eero+ deep dive; managing 80+ devices; DNS and DHCP configuration; Thread mesh integration; and the complete 4-node, 121-device setup — with what I'd do differently.