How to set up mesh Wi-Fi yourself: step by step in one evening
Mesh systems are sold as “plug in and it works” for a reason: you really can set them up yourself. But where you put the nodes decides whether it is “it works” or “better, but still weird”. Here is the order we use ourselves.
Before you open the box
- Find out how your internet arrives: your provider's cable into your router, or into an ONU/modem. If you already have a provider router, it will need to stop acting as a router (see below).
- Draw a quick floor plan and mark where the internet comes in and where you need signal: desks, kitchen, bedrooms, terrace.
- Download the manufacturer's app in advance. Most mesh systems are set up through it, not through a browser.
- Keep a patch cable handy: you will need it for the first connection.
Step 1. Choose a spot for the main node
The main node connects to the internet by cable, so it often ends up where the cable enters the flat: a corner, a hallway, the cupboard with the fuse box. That is the worst place for a radio. Metal and the fuse box kill the signal, and a corner gives away half the power to the neighbours.
- Ideal: closer to the middle of the home, in the open, 1 to 1.5 metres up, on a shelf or wall, not inside a cupboard and not behind the TV.
If the provider's cable arrived in an awkward place, the simplest fix is to run one more cable from it to a better spot, or to move the main node there on a long patch cable. A few minutes with a cable channel and a cable beat a more expensive node.
Step 2. Connect the main node
Plug the provider's cable (or the one from the modem) into the WAN or Internet port of the main node. Power it up, open the app and add the system following the prompts. Usually that means scanning a QR code on the node, choosing the country (Ukraine) and creating an account.
If you used to have a provider router: the cleanest option is to connect the mesh instead of it. Often the provider lets you simply remove it and use the cable directly; in some cases you need a PPPoE login and password or MAC address binding, which you must ask support about. If the provider router stays, put it in bridge mode, or plug the mesh into it and switch the mesh system to access point mode. Otherwise you get “double NAT”: two networks inside each other, and some things (games, remote access, cameras) start behaving strangely.
Step 3. Network name and password
- One network name (SSID) and one password for all nodes. That way the phone switches between nodes on its own and you never choose by hand.
- Security: WPA3, or mixed WPA2/WPA3 if you have older devices. Plain WPA2 is fine too. Turn off open networks and WEP.
- Wi-Fi password: 12 characters or more, not a birthday and not a street name. You will see it once, so save it in a password manager.
- Separately change the admin password of the app or web interface. It is not the same as the Wi-Fi password.
Step 4. Place the extra nodes
This is where most people go wrong, because it is tempting to put a node in the farthest room, where Wi-Fi is worst. Don't. A node takes its signal from the previous one, so it needs a good signal itself, and then it hands it on.
- Put the node roughly at the edge where the signal from the main node is still good (3 or 4 bars on a phone, or “good” in the app), not where you can barely see it.
- Ideally no more than one or two walls between two nodes. Reinforced concrete floors and load-bearing walls eat the most signal.
- Do not hide nodes behind furniture, in cupboards, near big mirrors, fish tanks or metal pipes.
- Not in a corner and not on the floor: on a shelf, wall or cabinet at height, near where you actually sit.
- For two floors: one node per floor, roughly one above the other, beats two on the same floor.
Most apps show the link quality between nodes. If it says “weak”, move the node closer to the main one until it says “good”.
Step 5. A cable between nodes, if you can run one
The radio link between nodes takes part of the speed, and the more “hops” the worse. If you can run even a simple Ethernet cable to the second node, it becomes the backbone and you lose almost no speed. One cable link is more reliable than three radio ones. Most systems detect the cable and use it automatically.
- Do not connect nodes by cable in a ring: it causes a packet storm.
- If you have several nodes and a cable to only one, cable the farthest one and let the nearer ones work by radio.
- About the cable: see our article on running and crimping Ethernet yourself.
Step 6. Update the firmware
Right after connecting, open the settings and update the firmware on every node. Turn on automatic updates if available. Manufacturers regularly fix roaming and security bugs.
Step 7. Check how it turned out
- Measure speed next to the main node, then in the far rooms (details: how to measure Wi-Fi speed properly). The difference should be moderate, not several times.
- Start a video call and walk through the home with your phone. Sound and picture should not break up, and the phone should switch to the nearest node on its own.
- If the phone clings to a far node, try enabling roaming support in the app (802.11k/v/r, “Fast roaming”). Do not change other settings “just to see”: one change at a time shows the problem, five changes show nothing.
- Walk through the places that used to be bad: bathroom, balcony, far bedroom.
What to turn off or on
- Turn off WPS: it is convenient but weak.
- Turn on a guest network for visitors and for smart devices, so they cannot see your computers and NAS (more: guest network and smart home).
- Turn off remote management from the internet unless you need it.
- Do not raise transmit power to the maximum “for reliability”: it makes the network louder, not better.
Typical mistakes
- Nodes too far from each other: the link between them is weak and the whole system is slow.
- Mesh on top of a provider router without bridge mode: double NAT.
- A range extender added on top of mesh. They interfere with each other.
- Different network names on different nodes: devices do not switch on their own.
- Expecting mesh to raise the speed your provider gives. It only spreads it around the home; if the contract says 100 Mbit/s, you will not get more.
When mesh will not help
In a big house with reinforced floors or many walls, wired access points often beat mesh. We describe the difference in the article on mesh versus wired access points. For new flats and homes where renovation is still ahead, lay the cable: that is the cheapest moment.
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