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Set up mesh in this order: put your provider's box into bridge mode (or plan to live with double NAT), wire the main unit to it, get that working on its own, then add one node at a time and check each before adding the next. Nearly every mesh system that disappoints was set up by placing all the units first and discovering the problems afterward.
Step 1 — Decide what happens to the provider's box
This is the only decision on the page that is hard to undo later. Your main mesh unit has to be wired to whatever brings the internet into the house; TP-Link's own documentation is explicit that a Deco cannot join an existing router wirelessly, and the same is true across the category.
If your provider gave you a modem only (a cable modem or a fiber ONT), there is nothing to decide. Ethernet from it to the main unit's WAN port and move on.
If your provider gave you a combined modem and router — a gateway — put it into bridge mode. TP-Link recommends exactly this to avoid double NAT, which is two devices both translating addresses and the usual cause of port-forwarding failures, console connection warnings and VPN trouble.
If bridge mode is not available, turn the gateway's own Wi-Fi off so it is not competing with your new network, and accept double NAT. Most households never notice it. The fuller version of this decision.
Step 2 — Place the main unit before you place anything else
The main unit has to sit near the incoming line, so your freedom here is limited — but within that limit, raise it, uncover it and get it out of the cabinet. Everything the rest of the system does is built on what this unit can produce. Router placement applies unchanged to a mesh main unit.
Then stop. Run the app's setup for this unit alone, confirm you have internet on a phone standing next to it, and run a speed test. If that number is not close to your plan, do not add nodes — you have a different problem and the nodes will inherit it.
Step 3 — Add one node, in the right place, and test it
eero publishes the clearest version of the spacing rule and it holds for every brand: 20 to 30 feet between units, never more than 50 feet on a wireless link, and never in the dead zone itself — halfway between the main unit and the dead zone, so the node receives a strong signal to rebroadcast. Height matters too: roughly halfway between floor and ceiling, on a shelf or a table, not on the floor.
Step
What you do
How you know it worked
1
Bridge the gateway, or disable its Wi-Fi
Only one device is handing out addresses
2
Wire the main unit, high and uncovered
A phone beside it gets close to your plan speed
3
Add node two, 20-30 ft away, halfway to the dead zone
The app reports a good or strong connection to the main unit
4
Speed test in the previously bad room
A usable number, not just more bars
5
Add further nodes one at a time, repeating 3 and 4
Each one improves a specific room
6
Wire any node you can reach with Ethernet or MoCA
The app shows that node on a wired backhaul
The order of operations. Each row has to pass before you start the next one.
Scroll the table sideways to see every column.
Use the app's own signal report between units, not the bars on your phone. A node showing a weak or fair link to the main unit is the single most common cause of a mesh system that cost a lot and changed little. Where to put nodes, room by room.
This usually backfires
Do not put a node in the dead zone
It is the instinctive thing to do and it is backwards. A node can only rebroadcast the signal it receives, so one placed in the bad room receives almost nothing and shares almost nothing. eero's own guidance is to place it halfway between the gateway and the dead zone. If the node and the main unit cannot hear each other well, nothing downstream can be good.
Step 4 — Wire the backhaul if you possibly can
A node connected to the main unit by Ethernet carries full throughput and stops competing for airtime. Most systems detect the cable and switch automatically; a few need the setting changed in the app. Either way, this is the single biggest improvement available after setup, and it is free if the cable already exists.
No Ethernet in the walls is not the end of it. Coaxial outlets behind televisions are common in US houses, and two MoCA adapters turn any pair of them into a shielded gigabit-class link. Powerline is the fallback. The mechanism, and why it matters this much, is on the backhaul page.
Step 5 — The five minutes of settings that are worth doing
Keep one network name for both bands. Band steering is part of what you bought; splitting the names defeats it.
Reuse your old network name and password if you want every device in the house to reconnect without being touched — including the smart plugs nobody remembers the passwords for.
Update the firmware before you judge performance. New systems frequently ship on older firmware.
Turn off the gateway's Wi-Fi if you did not bridge it, so the two networks stop fighting for the same channels.
Leave the rest alone. Channel selection, QoS and band-width settings are where working networks go to die. Change them only to fix something specific.
What to look for in a system, if you have not bought yet
Setup difficulty is a real buying criterion, and it is not evenly distributed. Look for a placement check in the app that tells you when a node is too far away, Ethernet ports on every unit so wiring the backhaul stays open to you, and a system that can reuse your existing network name. The three picks below are ranked on exactly those things rather than on peak throughput.
How we picked
We do not run a test lab. Rankings here are built from the manufacturers' published specifications, measurements taken by independent outlets that do have labs, and the structural reasoning on this site about what a given house or job actually needs. Every product was checked as currently sold before it was included. Where a figure appears it is attributed and linked in Sources; where we have no basis for a claim, it is left out. Our methodology sets out exactly what we will and will not assert.
Quick picks
Ranked by our published scoring rubric (setup simplicity, placement guidance, wired backhaul, value). Tap any row to jump to the full write-up, or go straight to the retailer from the right-hand column. How we score.
#
Product
Best for
Score
Price
1
Illustrative
eero Pro 7The app's placement guidance actually tells you when a node is too far away, and five Ethernet ports per unit make wiring the backhaul a non-event.
TP-Link Deco BE63A busier app than eero's, and that is the trade: more settings to get wrong, and more settings to get right once you know what you want.
Amazon eero 6+The system to install for a household that will never open the app again — and it keeps a dedicated 5 GHz lane for the nodes without you configuring anything.
Scroll the table sideways on a narrow screen. Scores are our editorial assessment from published specifications and independent testing by named outlets — not our own lab results. What we do and do not test.
The picks in full
Illustrative
#1 · The least painful setup
eero Pro 7
eero · Premium
The default tri-band Wi-Fi 7 mesh for most houses: five Ethernet ports on every unit, a genuinely painless app, and a smart-home hub built in.
Key specifications
Standard
Wi-Fi 7, tri-band (2.4 / 5 / 6 GHz)
Ports per unit
5 Ethernet, including a 10 Gbps WAN
Coverage
About 2,000 sq ft per unit
Devices
200+
Smart home
Thread, Matter and Zigbee hub built in
Score 9.4/10
Setup simplicity10.0
Placement guidance10.0
Wired backhaul10.0
Value7.5
What it gets right
+Five Ethernet ports per unit is unusually generous, and it makes wired backhaul easy in a house with any cabling at all
+The 6 GHz band gives the nodes a fast, uncongested lane to talk to each other on
+Setup and node placement guidance in the app are the least frustrating of any system in this category
+Acts as a Thread, Matter and Zigbee hub, which can replace a separate smart-home bridge
What to watch for
−Some network controls people expect are behind eero's optional subscription
−Tri-band, not quad-band — a very large house on a multi-gig plan may prefer more radio capacity
−Amazon account linkage is part of the experience whether you want it or not
#ad We do not publish a price we cannot verify, so the button opens Amazon's own listing. How we are funded.
Common questions
Do I need to turn off my old router when I set up mesh Wi-Fi?+−
You need to stop it routing, not necessarily unplug it. If it is a combined modem and router from your provider, put it in bridge mode so only the mesh system hands out addresses — TP-Link recommends this directly to avoid double NAT. If bridge mode is unavailable, at minimum switch off its Wi-Fi so the two networks are not competing.
How far apart should mesh Wi-Fi nodes be?+−
eero's published guidance is 20 to 30 feet apart and no more than 50 feet on a wireless link, which is a reasonable rule for any brand. Count obstacles as well as feet: two nodes 25 feet apart through one brick wall will outperform two nodes 15 feet apart through two.
Can I set up mesh Wi-Fi with my existing router?+−
Yes, by wiring the main mesh unit to the existing router and leaving the router to handle the internet connection — but you then have two devices doing the same job. The cleaner result is to bridge the existing box. Mesh units cannot join an existing router wirelessly. How to do it without double NAT.
How long does it take to set up a mesh Wi-Fi system?+−
About twenty minutes for a two-piece system if the provider's box cooperates, plus however long bridge mode takes on your particular gateway — which is the part that occasionally needs a phone call. Add ten minutes per extra node, because each one should be placed and tested before the next is added.
Illustrative
