MacBook Wi-Fi keeps dropping? What to check
11 November 2026 · Mac guides
Your MacBook keeps dropping off Wi-Fi, takes ages to reconnect, or refuses to join a network that every other device in the house is happy with. It is one of the most frustrating faults to live with, because it comes and goes. The good news is that most Wi-Fi problems are settings or router issues you can fix yourself. This guide walks through the checks in a sensible order and explains the signs that point to a hardware fault.
Step one: is it the MacBook or the network?
Before changing anything on the Mac, find out where the problem lives.
- Do phones, tablets and other computers on the same Wi-Fi drop out at the same times? If so, the router or broadband line is the more likely culprit.
- Does the MacBook behave on a different network, such as a phone hotspot, a friend's house or a café? If it works fine elsewhere, the issue is between your Mac and your router rather than the Mac alone.
- Does it drop out only in certain rooms? Walls, floors, mirrors and fish tanks all weaken Wi-Fi more than people expect.
Restarting the router and the MacBook clears a surprising number of problems, so do both before going further.
Safe checks on the Mac
Look at the connection details
Hold the Option key and click the Wi-Fi icon in the menu bar. You will see extra details about the current connection, including signal strength and the channel in use, and an option to open Wireless Diagnostics. The diagnostics tool can monitor the connection over time and suggest changes, which is useful when the fault is intermittent.
Forget the network and rejoin
Open System Settings, then Wi-Fi, click the details button next to your network and choose Forget This Network. Then join it again with the password. This clears out old settings that sometimes cause repeated drop-outs, particularly after a router has been replaced or reset.
Check the private address setting
In the same network details, recent versions of macOS have a Private Wi-Fi address setting. It protects your privacy on public networks, but some home and office routers that filter devices by address, or that assign fixed addresses, can get confused when it changes. On your own trusted network, try setting it to fixed or off and see whether the drop-outs stop.
Turn off VPNs and security software for a test
VPN apps, firewalls and some security software sit between your Mac and the network. If the trouble started after installing one, pause or quit it and test again. Safe mode, which you start by holding a key or the power button at startup depending on your Mac, loads fewer extras and is a quick way to see whether third-party software is involved.
Think about what changed
Did it start after a macOS update, a new router, or a new Bluetooth accessory? Some older routers struggle with newer Macs, and a firmware update for the router can help. Bluetooth and older 2.4GHz Wi-Fi share the same radio space, so if your router offers a 5GHz network, try joining that instead.
Signs it is a hardware fault
If the Mac drops out on every network, including a phone hotspot sitting right next to it, the cause is more likely inside the MacBook. Clues include:
- A very weak signal even when you are close to the router.
- Wi-Fi that works with the lid at one angle but not another.
- The Wi-Fi option disappearing, or a message saying no Wi-Fi hardware is installed.
- Problems that started after a drop, a knock to the screen, a screen replacement or a spill.
On many MacBooks the Wi-Fi antennas run up into the display area, with fine cables passing through the hinge. Damage there, or a previous repair that left a cable pinched or loose, can weaken the signal. On Apple silicon MacBooks the wireless chip is part of the logic board, so a failed chip is a board-level repair rather than a quick part swap. Liquid is another common cause: corrosion can creep into the wireless circuitry days or weeks after a spill, even if everything else seems fine. If that sounds like your MacBook, see our page on liquid damage repair.
Workarounds while you decide
If you need to keep working, a USB-C to Ethernet adapter plugged into your router gives you a reliable wired connection and also proves whether the rest of the Mac is behaving. It is a useful test as well as a stopgap: if everything is fast and stable on a cable, the Wi-Fi hardware or antennas are the likely problem.
Repair or live with it?
A MacBook that only drops Wi-Fi on one network is usually worth fixing at the router end. One that struggles everywhere is worth having checked, because the cause is often something specific, such as an antenna cable or a component on the board, rather than a sign the whole machine is failing. Our full diagnostics will pin it down so you can decide calmly. We repair all models, so whether you have a MacBook Pro or a MacBook Air, we can tell you what is wrong and what it involves.
Get a quote
If your MacBook will not stay connected to Wi-Fi, call 020 7394 2525 or bring it to 80 Willow Walk, London SE1 5SY. We are open 9am to 6pm, Monday to Saturday, with bike collection in London and courier collection across the UK.