{"id":4830,"date":"2026-04-01T10:31:01","date_gmt":"2026-04-01T08:31:01","guid":{"rendered":"https:\/\/reparationmac.be\/?p=4830"},"modified":"2026-04-01T11:04:39","modified_gmt":"2026-04-01T09:04:39","slug":"mac-wifi-not-working","status":"publish","type":"post","link":"https:\/\/reparationmac.be\/en\/wifi-mac-ne-fonctionne-plus\/","title":{"rendered":"Mac Wi-Fi: solving connection problems"},"content":{"rendered":"<div class=\"article-blog\">\n\n  <h1>Mac WiFi no longer working: 10 solutions for restoring the connection<\/h1>\n\n  <div class=\"article-meta\">Reading : 12 min | Troubleshooting<\/div>\n\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/04\/wifi-mac-ne-fonctionne-plus.webp\" alt=\"Mac with WiFi connection problems and troubleshooting solutions\" title=\"Mac WiFi no longer works - complete solutions\" width=\"1200\" height=\"568\" loading=\"eager\">\n\n  <div class=\"answer-box\">\n    <strong>In a nutshell:<\/strong> When your Mac's WiFi stops working, start by deactivating and then reactivating WiFi, restarting your router and your Mac, and then resetting the network settings. If the problem persists, delete the network preference files or run a network diagnostic built into macOS. In the case of hardware problems (faulty AirPort card, damaged antenna), a free professional diagnosis from MAC Repair will help you identify the exact cause.\n  <\/div>\n\n  <div class=\"toc-box\">\n    <strong>Contents<\/strong>\n    <ul>\n      <li><a href=\"#pourquoi-wifi-ne-marche-plus\">Why your Mac's WiFi is no longer working<\/a><\/li>\n      <li><a href=\"#solution-1-desactiver-reactiver\">Solution 1 - Deactivating and reactivating WiFi<\/a><\/li>\n      <li><a href=\"#solution-2-redemarrer-routeur-mac\">Solution 2 - Restart the router and the Mac<\/a><\/li>\n      <li><a href=\"#solution-3-oublier-reseau\">Solution 3 - Forget the network and reconnect<\/a><\/li>\n      <li><a href=\"#solution-4-diagnostic-reseau\">Solution 4 - Run macOS network diagnostics<\/a><\/li>\n      <li><a href=\"#solution-5-dns-manuel\">Solution 5 - Changing DNS servers manually<\/a><\/li>\n      <li><a href=\"#solution-6-preferences-reseau\">Solution 6 - Delete network preference files<\/a><\/li>\n      <li><a href=\"#solution-7-smc-nvram\">Solution 7 - Reset the SMC and NVRAM<\/a><\/li>\n      <li><a href=\"#solutions-avancees\">Advanced solutions for persistent cases<\/a><\/li>\n      <li><a href=\"#quand-reparation\">When to call in a professional repairer<\/a><\/li>\n      <li><a href=\"#faq\">Frequently asked questions<\/a><\/li>\n    <\/ul>\n  <\/div>\n\n  <h2 id=\"pourquoi-wifi-ne-marche-plus\">Why your Mac's WiFi is no longer working<\/h2>\n\n  <p>A Mac that suddenly loses its WiFi connection, refuses to connect to a known network or displays a crossed-out WiFi icon in the menu bar... it's a frustrating situation, especially when everything was working perfectly just an hour earlier. Before you panic, you should know that the majority of WiFi problems on Macs can be resolved without any hardware intervention.<\/p>\n\n  <p>The causes generally fall into three categories. On the software side, an incorrectly installed macOS update, corrupted preference files or a DNS conflict regularly cause disconnections. On the network side, the router itself may be saturated, incorrectly configured or overheated. Finally, on the hardware side - rarer but not impossible - a damaged WiFi antenna plate or a faulty AirPort card can explain a persistent problem, particularly on MacBooks that have suffered a shock or an accident. <a href=\"\/en\/mac-dropped-in-water-emergency\/\">liquid damage<\/a>.<\/p>\n\n  <p>Let's take a look at the solutions, from the simplest to the most advanced, for restoring your connection.<\/p>\n\n  <h2 id=\"solution-1-desactiver-reactiver\">Solution 1 - Deactivating and reactivating WiFi<\/h2>\n\n  <p>The most basic reflex is often the most effective. Click on the WiFi icon in the menu bar, then select <strong>Disable Wi-Fi<\/strong>. Wait about ten seconds, then reactivate it. This forces macOS to reset the wireless network stack and rediscover the available networks.<\/p>\n\n  <p>On Mac laptops, you can also activate and deactivate the <strong>aeroplane mode<\/strong> via the Control Centre (icon in the top right-hand corner on macOS Ventura and later versions). This action cuts all wireless connections at once, including Bluetooth, before restoring them cleanly.<\/p>\n\n  <div class=\"info-box tip\">\n    <strong>Tip:<\/strong> If the WiFi icon is completely missing from your menu bar, go to <strong>System Settings \u2192 Control Centre \u2192 Wi-Fi<\/strong> and check that the display option is activated. On older versions of macOS, it's in <strong>System Preferences \u2192 Network<\/strong>.\n  <\/div>\n\n  <h2 id=\"solution-2-redemarrer-routeur-mac\">Solution 2 - Restart the router and the Mac<\/h2>\n\n  <p>If the first solution doesn't work, proceed to a complete reboot of both devices. Start with the router: disconnect it from the power supply, wait 30 seconds (for the capacitors to drain), then reconnect it. Wait for all the lights to stabilise - this usually takes two to three minutes.<\/p>\n\n  <p>Then restart your Mac via the <strong>Apple \u2192 Restart<\/strong>. This double reboot can be used to resolve problems linked to an expired DHCP lease, a corrupted routing table or a conflict between IP addresses on the local network. It's also a good opportunity to check whether other devices in your home are connecting to WiFi normally: if none are connecting, the problem is with your router or ISP, not your Mac.<\/p>\n\n  <h2 id=\"solution-3-oublier-reseau\">Solution 3 - Forget the network and reconnect<\/h2>\n\n  <p>macOS stores all the WiFi networks you've ever connected to, along with their passwords and settings. Sometimes this information becomes obsolete - for example after a WiFi password change or a router replacement.<\/p>\n\n  <p>To force a fresh connection :<\/p>\n\n  <table class=\"tg-table\">\n    <thead>\n      <tr>\n        <th>Step<\/th>\n        <th>Action<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td><span class=\"cell-label\">1<\/span><\/td>\n        <td>Open <strong>System Settings \u2192 Wi-Fi<\/strong><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">2<\/span><\/td>\n        <td>Click on <strong>Details<\/strong> next to the problematic network<\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">3<\/span><\/td>\n        <td>Click on <strong>Forget this network<\/strong> then confirm<\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">4<\/span><\/td>\n        <td>Reconnect by selecting the network and entering the password<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n\n  <p>If your list contains dozens of public networks (hotels, caf\u00e9s, airports), delete the ones you no longer use. macOS sometimes tries to connect automatically to a weak network rather than your own.<\/p>\n\n  <h2 id=\"solution-4-diagnostic-reseau\">Solution 4 - Run macOS network diagnostics<\/h2>\n\n  <p>macOS includes a network diagnostics tool that is often underestimated. To access it, hold down the <strong>Option (\u2325)<\/strong> and click on the WiFi icon in the menu bar. Select <strong>Open Wireless diagnostics<\/strong>. This utility analyses your WiFi environment and identifies interference, saturated channels and configuration problems.<\/p>\n\n  <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/04\/diagnostic-sans-fil-macos-wifi.webp\" alt=\"MacOS Wireless Diagnostics tool for analysing WiFi connection problems\" title=\"macOS wireless diagnostics - WiFi channel analysis\" width=\"1200\" height=\"568\" loading=\"lazy\">\n\n  <p>The tool generates a detailed report showing, among other things, the WiFi channel used by your router and the level of congestion on that channel. In a dense urban environment like Brussels, where dozens of neighbouring networks overlap, changing your router's channel (from channel 6 to channel 1 or 11 in 2.4 GHz, for example) can radically transform the stability of the connection. Consult the <a href=\"https:\/\/support.apple.com\/fr-be\/102766\" rel=\"noopener\" target=\"_blank\">Apple documentation on wireless diagnostics<\/a> to find out more about interpreting the results.<\/p>\n\n  <div class=\"info-box tip\">\n    <strong>Good to know:<\/strong> If your router allows it, always use the 5 GHz band rather than the 2.4 GHz band. The 5 GHz band offers higher throughput and is subject to much less interference, even if its range is slightly shorter.\n  <\/div>\n\n  <h2 id=\"solution-5-dns-manuel\">Solution 5 - Changing DNS servers manually<\/h2>\n\n  <p>Your Mac may be connected to WiFi (normal icon in the menu bar) but not accessing the Internet. In this case, the problem often lies with the DNS servers supplied automatically by your router or ISP. Replacing these DNS servers with more reliable ones often solves the problem.<\/p>\n\n  <p>Here's how it works:<\/p>\n\n  <table class=\"tg-table\">\n    <thead>\n      <tr>\n        <th>Step<\/th>\n        <th>Action<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td><span class=\"cell-label\">1<\/span><\/td>\n        <td>Open <strong>System Settings \u2192 Wi-Fi<\/strong>, click on <strong>Details<\/strong> your network<\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">2<\/span><\/td>\n        <td>Go to the <strong>DNS<\/strong><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">3<\/span><\/td>\n        <td>Delete existing DNS using the <strong>\u2212<\/strong><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">4<\/span><\/td>\n        <td>Add <strong>8.8.8.8<\/strong> and <strong>8.8.4.4<\/strong> (Google DNS) or <strong>1.1.1.1<\/strong> and <strong>1.0.0.1<\/strong> (Cloudflare)<\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">5<\/span><\/td>\n        <td>Click on <strong>OK<\/strong> then test the navigation<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n\n  <p>If browsing resumes immediately, the problem was indeed with the DNS. You can keep this configuration permanently without any inconvenience - Google's and Cloudflare's public DNS are generally faster and more reliable than those of Belgian providers.<\/p>\n\n  <h2 id=\"solution-6-preferences-reseau\">Solution 6 - Delete network preference files<\/h2>\n\n  <p>macOS stores the network configuration in several files in the system folder. When these files become corrupted - after a power cut, a crash or an interrupted update - WiFi can become unstable or refuse to connect. Deleting these files forces macOS to recreate them anew.<\/p>\n\n  <p>Before you start, <strong>Write down your WiFi password<\/strong> (you will need to re-enter it after the operation) and close all applications. Open the Finder, use the <strong>Go \u2192 Go to folder<\/strong> and type :<\/p>\n\n  <p><code>\/Library\/Preferences\/SystemConfiguration\/<\/code><\/p>\n\n  <p>Move the following files to your Desktop (don't delete them permanently, just in case):<\/p>\n\n  <table class=\"tg-table\">\n    <thead>\n      <tr>\n        <th>File<\/th>\n        <th>Role<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td><span class=\"cell-label\">com.apple.airport.preferences.plist<\/span><\/td>\n        <td><span class=\"cell-desc\">Preferences for memorised WiFi networks<\/span><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">com.apple.network.identification.plist<\/span><\/td>\n        <td><span class=\"cell-desc\">Identification of network locations<\/span><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">com.apple.wifi.message-tracer.plist<\/span><\/td>\n        <td><span class=\"cell-desc\">WiFi event log<\/span><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">NetworkInterfaces.plist<\/span><\/td>\n        <td><span class=\"cell-desc\">Configuring network interfaces<\/span><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">preferences.plist<\/span><\/td>\n        <td><span class=\"cell-desc\">Global network system preferences<\/span><\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n\n  <p>Restart your Mac. The system will automatically recreate blank files and you will need to reconnect to your WiFi network. This method solves the vast majority of persistent software WiFi problems.<\/p>\n\n  <div class=\"info-box warning\">\n    <strong>Please note:<\/strong> If you use advanced network configurations (VPN, proxies, custom locations), take a screenshot of your network settings before deleting these files. See our guide to <a href=\"\/en\/mac-screenshot-guide\/\">Mac screenshots<\/a> if necessary.\n  <\/div>\n\n  <h2 id=\"solution-7-smc-nvram\">Solution 7 - Reset the SMC and NVRAM<\/h2>\n\n  <p>The SMC (System Management Controller) and NVRAM (Non-Volatile Random Access Memory) manage certain low-level hardware parameters, including power management for wireless components. Resetting these controllers can solve WiFi problems that software solutions do not correct.<\/p>\n\n  <table class=\"tg-table\">\n    <thead>\n      <tr>\n        <th>Type of Mac<\/th>\n        <th>SMC reset<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td><span class=\"cell-label\">MacBook with T2 chip (2018-2020)<\/span><\/td>\n        <td><span class=\"cell-desc\">Switch off the Mac. Hold Ctrl + Option + Shift (left side) for 7 seconds, then add the power button. Hold down the 4 keys for a further 7 seconds, release, wait, then switch on again.<\/span><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">MacBook without T2 (non-removable battery)<\/span><\/td>\n        <td><span class=\"cell-desc\">Switch off the Mac. Hold down Ctrl + Option + Shift + power button for 10 seconds. Release, wait, then turn it back on.<\/span><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">iMac, Mac mini, Mac Pro<\/span><\/td>\n        <td><span class=\"cell-desc\">Switch off, disconnect the power cable, wait 15 seconds, reconnect, wait 5 seconds, then switch on again.<\/span><\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">Apple Silicon Mac (M1\/M2\/M3\/M4)<\/span><\/td>\n        <td><span class=\"cell-desc\">No SMC to reset. A simple reboot is all that's needed - hold the power button for 10 seconds to force a power-down if required.<\/span><\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n\n  <p>For NVRAM, switch off your Intel Mac, then switch it back on again by immediately holding down the key. <strong>Option + Command + P + R<\/strong> for approximately 20 seconds (you will hear the start-up sound twice on older models). On Apple Silicon Macs, NVRAM automatically resets itself on each reboot if necessary.<\/p>\n\n  <h2 id=\"solutions-avancees\">Advanced solutions for persistent cases<\/h2>\n\n  <p>If none of the above solutions has worked, here are three additional avenues to explore before concluding that there is a hardware problem.<\/p>\n\n  <h3>Create a new network location<\/h3>\n\n  <p>In <strong>System settings \u2192 Network<\/strong>, click on the drop-down menu <strong>Location<\/strong> at the top of the window and choose <strong>Modifying locations<\/strong>. Create a new location (name it \u00abWiFi Fix\u00bb, for example), select it and then reconnect to your network. This will create a completely new network profile, independent of the old one.<\/p>\n\n  <h3>Check for hardware interference<\/h3>\n\n  <p>Some USB 3.0 accessories, external hard drives and even some USB-C hubs emit radio interference that disrupts the 2.4 GHz WiFi signal. Temporarily disconnect all peripherals from your Mac and test the connection. If the WiFi returns, reconnect your accessories one by one to identify the culprit.<\/p>\n\n  <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/04\/interferences-wifi-mac-peripheriques-us.webp\" alt=\"USB devices that can cause WiFi interference on Macs\" title=\"Mac WiFi interference - problematic USB peripherals\" width=\"1200\" height=\"568\" loading=\"lazy\">\n\n  <h3>Starting up in safe mode<\/h3>\n\n  <p>Le <a href=\"\/en\/start-mac-in-safe-mode\/\">safe mode<\/a> loads macOS with a minimum of components. If WiFi works in safe mode but not in normal start-up, a third-party extension or security software (antivirus, firewall, VPN) is interfering with the connection. Uninstall the suspect software one by one to isolate the conflict. Our article on <a href=\"\/en\/is-antivirus-necessary-on-mac-tests\/\">Mac antivirus<\/a> can help you identify security software that is sometimes too intrusive.<\/p>\n\n  <h2 id=\"quand-reparation\">When to call in a professional repairer<\/h2>\n\n  <p>After exhausting all software solutions, a WiFi problem that persists generally indicates a hardware fault. Several components may be at fault:<\/p>\n\n  <table class=\"tg-table\">\n    <thead>\n      <tr>\n        <th>Component<\/th>\n        <th>Typical symptoms<\/th>\n        <th>Models concerned<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td><span class=\"cell-label\">WiFi antenna cover<\/span><\/td>\n        <td><span class=\"cell-desc\">Very weak signal, frequent disconnections, WiFi only functional in the immediate vicinity of the router<\/span><\/td>\n        <td>MacBook Air\/Pro all generations<\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">AirPort card \/ WiFi module<\/span><\/td>\n        <td><span class=\"cell-desc\">WiFi icon greyed out or permanently crossed out, no network detected, \u00abWiFi: no equipment installed\u00bb.\u00bb<\/span><\/td>\n        <td>MacBook Pro pre-2016, iMac, Mac mini<\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">WiFi chip integrated into the motherboard<\/span><\/td>\n        <td><span class=\"cell-desc\">Same symptoms as the AirPort card, but on recent models where WiFi is soldered to the motherboard.<\/span><\/td>\n        <td>MacBook Pro 2016+, MacBook Air Retina, Mac Apple Silicon<\/td>\n      <\/tr>\n      <tr>\n        <td><span class=\"cell-label\">Antenna connector<\/span><\/td>\n        <td><span class=\"cell-desc\">Intermittent WiFi, signal disappears when the screen is in certain positions<\/span><\/td>\n        <td>MacBook Air\/Pro (antennas in screen cover)<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n\n  <p>At <strong>MAC repair<\/strong>, the <a href=\"\/en\/free-mac-diagnostic\/\">diagnosis is free of charge<\/a> and can pinpoint the exact cause of the problem in just a few minutes. With over 15 years' experience since 2010, we work on all Mac models with professional quality parts and a 180-day guarantee. You can drop off your Mac in <a href=\"\/en\/mac-repair-workshop-brussels\/\">workshop in Brussels<\/a> or take advantage of our\u2019<a href=\"\/en\/mac-pickup-and-delivery\/\">collection and delivery<\/a>.<\/p>\n\n  <h2 id=\"faq\">Frequently asked questions<\/h2>\n\n  <div class=\"faq-section\">\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>Why can't my Mac detect any WiFi networks?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>If no network is detected at all, this indicates either a serious software problem (corrupted preference files) or a hardware fault in the WiFi card or antenna array. Start by deleting the network preference files and rebooting. If the message \u00abWiFi: no hardware installed\u00bb appears, the problem is hardware and requires professional intervention.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>My Mac connects to WiFi but can't access the Internet. What should I do?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>This symptom usually points to a DNS problem or an incorrect IP configuration. Change your DNS servers manually (8.8.8.8 and 8.8.4.4) in the Wi-Fi settings. If this doesn't help, renew the DHCP lease in your WiFi connection details, TCP\/IP section.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>WiFi disconnects after my MacBook goes to sleep. Is this normal?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>macOS disables WiFi in standby to save battery power, this is normal behaviour. If reconnection fails on wake-up, reset NVRAM on Intel Macs or create a new network location. Also check that the \u00abEnable network wake-up\u00bb option is configured correctly in the battery settings.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>Can a macOS update break WiFi?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>Yes, some macOS updates change network drivers or WiFi security settings, which can cause temporary incompatibilities. After a problematic update, delete the network preference files and restart. Apple generally publishes a patch in the weeks following major problems.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>How do I know if the problem is with my Mac or my router?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>Test the WiFi connection with another device (smartphone, tablet). If no device connects, the problem is with the router. If only your Mac is affected, test it on another WiFi network (a neighbour's, at the office, via your phone's connection sharing). If the Mac connects elsewhere but not to you, the problem is linked to the configuration of your router.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>My MacBook says \u00abWiFi: no hardware installed\u00bb. What does this message mean?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>This message indicates that macOS no longer detects your Mac's WiFi card. This is a hardware problem: the AirPort card is disconnected or faulty, or the ribbon connecting the card to the motherboard is damaged. On recent Macs where WiFi is integrated into the chip, this may indicate a problem with the motherboard. A professional diagnosis is required.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>Does changing DNS really improve WiFi speed?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>Changing your DNS does not increase the speed of your Internet connection, but it can significantly speed up web page loading times. Public DNS such as those from Cloudflare (1.1.1.1) or Google (8.8.8.8) often resolve domain names faster than the default DNS of Belgian ISPs.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>My Mac's WiFi is very slow, but my other devices work normally. Why is this?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>Your Mac may be connecting at 2.4 GHz instead of 5 GHz, or interference may be coming from connected USB 3.0 peripherals. Check the band used by clicking on the WiFi icon with the Option key held down. Try disconnecting all USB devices and testing again.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>How much does it cost to repair WiFi on a Mac?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>The cost depends on the cause: replacing a WiFi antenna pad is relatively affordable, while repairing a motherboard (for models with soldered WiFi) is more complex. At R\u00e9paration MAC, our diagnosis is free and we will give you a precise estimate before any work is carried out. All our prices are available on our <a href=\"\/en\/mac-pricing\/\">rates<\/a>.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"faq-item\">\n      <div class=\"faq-question\">\n        <span>Is an external USB WiFi adapter a good temporary solution?<\/span>\n        <span class=\"faq-toggle\">+<\/span>\n      <\/div>\n      <div class=\"faq-answer\">\n        <p>Yes, a USB WiFi adapter can help out while you're waiting for a repair, but compatibility with macOS can be tricky. Choose models that are explicitly macOS compatible (no need for a third-party driver). This is an acceptable temporary solution, but it doesn't offer the performance or stability of your Mac's built-in WiFi.<\/p>\n      <\/div>\n    <\/div>\n\n  <\/div>\n\n  <div class=\"related-links\">\n    <strong>Related articles<\/strong>\n    <ul>\n      <li><a href=\"\/en\/mac-wont-turn-on\/\">Mac won't turn on: 7 effective solutions<\/a><\/li>\n      <li><a href=\"\/en\/overheating-mac-fan\/\">Mac overheating: causes and solutions<\/a><\/li>\n      <li><a href=\"\/en\/start-mac-in-safe-mode\/\">Starting Mac in Safe Mode<\/a><\/li>\n      <li><a href=\"\/en\/slow-mac-solutions-optimization\/\">Slow Mac: 12 solutions to boost it<\/a><\/li>\n    <\/ul>\n  <\/div>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>WiFi Mac ne fonctionne plus : 10 solutions pour r\u00e9tablir la connexion Lecture : 12 min | Pannes et Solutions En r\u00e9sum\u00e9 : Quand le WiFi de votre Mac ne fonctionne plus, commencez par d\u00e9sactiver puis r\u00e9activer le WiFi, red\u00e9marrez votre routeur et votre Mac, puis r\u00e9initialisez les param\u00e8tres r\u00e9seau. Si le probl\u00e8me persiste, supprimez [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4833,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","footnotes":""},"categories":[14],"tags":[160,163,161,169,165,164,166,162,168,167],"class_list":["post-4830","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pannes-solutions","tag-carte-airport","tag-diagnostic-sans-fil","tag-dns-mac","tag-interferences-wifi","tag-macbook-wifi","tag-nappe-antenne-wifi","tag-probleme-wifi","tag-reinitialiser-reseau-mac","tag-smc-nvram","tag-wifi-mac"],"_links":{"self":[{"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/posts\/4830","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/comments?post=4830"}],"version-history":[{"count":0,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/posts\/4830\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/media\/4833"}],"wp:attachment":[{"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/media?parent=4830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/categories?post=4830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/tags?post=4830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}