Where to place a second Wi-Fi access point

A second access point can fill a Wi-Fi dead spot, but putting it in the dead spot may not work. If it connects to your router wirelessly, it needs a usable connection of its own, not just a good signal for devices nearby.

Use the Wi-Fi Map to compare connection quality in the rooms you need to cover, then test a few possible locations. The browser cannot read Wi-Fi signal strength in dBm, so the map shows how the connection performs instead, including response time, jitter, and lost requests.

Compare possible access point locations

1. Open the Wi-Fi Map on the laptop or phone you will use for the comparison. Keep using that same device for each test so differences in its Wi-Fi hardware do not affect the comparison.
2. With your current network, test the rooms where coverage is poor and the route between those rooms and the router. Pause at each spot long enough for the connection readings to settle. Note the location and whether response time, jitter, or lost requests are worse there.
3. Choose a few candidate locations. If the new access point will use a wireless connection to the router, include spots between the router and the weak area where your current connection is still consistent. If it will use Ethernet, you can place it closer to the area that needs coverage.
4. Install or temporarily place the access point at one candidate location, then connect your test device to it. If both access points use the same network name, your device may stay connected to the original one. Check the access point's management app or router page to confirm which one the device is using. A temporary, distinct network name can also help identify the new access point during testing.
5. Repeat the tests at the same locations as before. Compare the weak room and the route to it, not just the reading beside the new access point. Test each candidate in similar conditions, with other heavy downloads paused if possible.

To connect a device to a chosen network, use Settings › Network & internet › Wi-Fi in Windows 11, System Settings › Wi-Fi on macOS, or Settings › Wi-Fi on most phones. Names can vary slightly by phone model.

What the result means

The weak room improves and the connection stays steady

This location is a good candidate. Look for consistently lower response times, less jitter, and fewer lost requests than in the baseline test. A single good reading is less useful than a repeated improvement across the room and the route you use.

The reading is good beside the access point, but poor farther away

The access point may be too far from the area you want to cover, or walls and furniture may be blocking its signal. Try a more open position closer to the target room. A strong result right next to the unit does not prove that it covers the whole room.

The new access point is close to the weak room, but its connection is unreliable

If the access point connects wirelessly, it may be too far from the router to provide a dependable link. Move it toward the router and retest. The Wi-Fi Map measures the connection from your test device, so it cannot separately report the quality of the access point's wireless link to the router.

Results change a lot between runs

Nearby network traffic, other devices, and interference can change readings. Repeat the comparison at the same points and at similar times. If you are testing while someone streams video or downloads a large file, note that, because it can affect the connection.

The readings look good, but devices still lose their connection

A map test is a snapshot, not proof that every device will roam smoothly between access points. Check the device's connection at the boundary between coverage areas, and watch for pauses when you move between rooms. Client devices decide when to switch access points, and some hold onto the first one for too long.

Improve the placement

1. Move the access point into the open. Raise it onto a shelf or table, and keep it away from metal cabinets, large appliances, and enclosed spaces. Test the new position rather than assuming a higher spot will always help.
2. Keep a wireless access point within range. If it uses wireless backhaul, place it where the existing network is still reliable, usually between the router and the weak area. A wireless extender placed at the edge of coverage cannot create a strong upstream connection.
3. Use Ethernet for the backhaul if you can. A wired link gives the access point a direct connection to the router, so you can place it where coverage is needed without relying on a wireless link between units. Retest the target rooms after connecting the cable.
4. Check which access point your device joined. With matching network names, phones and computers may not switch immediately. Confirm the connected access point in your network app, or briefly use a separate network name while comparing locations. On Windows 11, check Settings › Network & internet › Wi-Fi. On macOS, check System Settings › Wi-Fi. On a phone, check Settings › Wi-Fi.
5. Review the access point's radio settings. Use its management app or setup page to check that it is configured as an access point, not as a second router creating a separate network. If you change channels or bands, compare the same rooms again because a setting that helps one area may not help another.
6. Retest during the times you rely on Wi-Fi. If coverage is for video calls or work, test when you usually use those services. If connection quality only worsens at busy times, the location may be fine and shared network traffic may be the bigger issue.

What the map cannot tell you

A browser cannot read the Wi-Fi radio's exact signal strength in dBm or show every detail of the connection between two access points. Wi-Fi Map helps you compare what your connection does at each location, but it cannot certify a particular access point, channel, or wireless standard.

Keep a short note of the places and results before and after moving the unit. That makes it easier to tell whether a change improved the rooms that matter, rather than just changing the reading beside the access point.