{"id":26858,"date":"2026-11-10T11:11:56","date_gmt":"2026-11-10T11:11:56","guid":{"rendered":"https:\/\/windowsreport.com\/fr\/?p=26858"},"modified":"2026-11-10T11:27:42","modified_gmt":"2026-11-10T11:27:42","slug":"att-wifi-ne-fonctionne-pas-6-facons-simples-dy-remedier","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/fr\/att-wifi-ne-fonctionne-pas-6-facons-simples-dy-remedier\/","title":{"rendered":"Le WiFi d\u2019AT&T ne fonctionne pas ? 6 fa\u00e7ons simples de le r\u00e9parer"},"content":{"rendered":"\n

Si votre connexion Wi-Fi AT&T ne fonctionne pas, le probl\u00e8me peut provenir d\u2019une panne de service, de la connexion \u00e0 la passerelle ou de param\u00e8tres r\u00e9seau incorrects. Suivez ces \u00e9tapes pour r\u00e9tablir votre connexion Internet.<\/p>\n\n\n\n

Que faire si le Wi-Fi AT&T ne fonctionne pas ?<\/h2>\n\n\n\n

1. V\u00e9rifiez s\u2019il y a une panne AT&T<\/h3>\n\n\n\n

Avant de modifier vos param\u00e8tres r\u00e9seau, v\u00e9rifiez si AT&T conna\u00eet une panne dans votre zone.<\/p>\n

    \n
  1. Consultez la page de pannes AT&T<\/a>.<\/li>\n\n\n\n
  2. Connectez-vous \u00e0 votre compte AT&T.<\/li>\n\n\n\n
  3. V\u00e9rifiez si des pannes Internet sont signal\u00e9es \u00e0 votre adresse.
    \"\"<\/li>\n\n\n\n
  4. Si AT&T signale une panne, recherchez les mises \u00e0 jour de r\u00e9tablissement.<\/li>\n<\/ol>\n\n\n

    Si AT&T ne signale aucune panne, passez \u00e0 la solution suivante.<\/p>\n\n\n\n

    2. Red\u00e9marrez votre passerelle Wi-Fi AT&T<\/h3>\n\n\n\n

    Le red\u00e9marrage de votre passerelle peut r\u00e9soudre les probl\u00e8mes de connexion temporaires.<\/p>\n\n\n\n

      \n
    1. D\u00e9branchez votre passerelle AT&T de la prise \u00e9lectrique.<\/li>\n\n\n\n
    2. Attendez au moins 20 secondes.<\/li>\n\n\n\n
    3. Rebranchez la passerelle \u00e0 la prise.<\/li>\n\n\n\n
    4. Patientez jusqu\u2019\u00e0 5 minutes pour qu\u2019elle red\u00e9marre. Certaines passerelles plus anciennes peuvent prendre plus de temps.<\/li>\n\n\n\n
    5. Reconnectez votre appareil au Wi-Fi et testez la connexion.<\/li>\n<\/ol>\n\n\n\n

      Vous pouvez \u00e9galement suivre les instructions de red\u00e9marrage de la passerelle d\u2019AT&T<\/a>.<\/p>\n\n\n\n

      3. V\u00e9rifiez les voyants de votre passerelle AT&T<\/h3>\n\n\n\n

      Les voyants de votre passerelle peuvent vous aider \u00e0 identifier les probl\u00e8mes de connexion.<\/p>\n\n\n\n

        \n
      1. V\u00e9rifiez les voyants d\u2019alimentation et d\u2019\u00e9tat Internet.<\/li>\n\n\n\n
      2. Recherchez des voyants rouges, clignotants ou \u00e9teints qui peuvent signaler un probl\u00e8me.<\/li>\n\n\n\n
      3. Assurez-vous que les c\u00e2bles d\u2019alimentation et de r\u00e9seau sont bien connect\u00e9s.<\/li>\n\n\n\n
      4. D\u00e9branchez et rebranchez tout c\u00e2ble desserr\u00e9.<\/li>\n\n\n\n
      5. Red\u00e9marrez la passerelle et v\u00e9rifiez si les voyants reviennent \u00e0 leur \u00e9tat normal.<\/li>\n<\/ol>\n\n\n\n

        Les couleurs et la signification des voyants varient selon le mod\u00e8le de passerelle. Consultez les instructions de votre mod\u00e8le si un voyant d\u2019avertissement reste allum\u00e9.<\/p>\n\n\n\n

        4. Oubliez votre r\u00e9seau Wi-Fi AT&T et reconnectez-vous<\/h3>\n\n\n\n

        Si votre t\u00e9l\u00e9phone ou votre ordinateur se connecte au Wi-Fi mais ne peut pas acc\u00e9der \u00e0 Internet, essayez de vous reconnecter.<\/p>\n\n\n\n

        Sous Windows 11, proc\u00e9dez comme suit :<\/p>\n\n\n

        \n\n\n

          \n
        1. Ouvrez Param\u00e8tres<\/strong>.<\/li>\n\n\n\n
        2. S\u00e9lectionnez R\u00e9seau et Internet > Wi-Fi<\/strong>.<\/li>\n\n\n\n
        3. Cliquez sur G\u00e9rer les r\u00e9seaux connus<\/strong>.
          \"\"<\/li>\n\n\n\n
        4. Trouvez votre r\u00e9seau Wi-Fi AT&T et s\u00e9lectionnez Oublier<\/strong>.
          \"oublier<\/li>\n\n\n\n
        5. Reconnectez-vous au r\u00e9seau et saisissez votre mot de passe Wi-Fi.<\/li>\n<\/ol>\n\n\n\n

          Sur Android ou iPhone, ouvrez les param\u00e8tres Wi-Fi<\/strong>, s\u00e9lectionnez votre r\u00e9seau, puis choisissez Forget This Network<\/strong> ou Forget<\/strong>. Reconnectez-vous ensuite \u00e0 l\u2019aide de votre mot de passe.<\/p>\n\n\n\n

          5. D\u00e9panner \u00e0 l\u2019aide d\u2019AT&T Smart Home Manager<\/h3>\n\n\n\n

          L\u2019application AT&T Smart Home Manager peut vous aider \u00e0 identifier les probl\u00e8mes de passerelle et de r\u00e9seau.<\/p>\n\n\n\n

            \n
          1. Ouvrez l\u2019application AT&T Smart Home Manager<\/strong>.<\/li>\n\n\n\n
          2. Connectez-vous \u00e0 l\u2019aide de votre compte AT&T.<\/li>\n\n\n\n
          3. V\u00e9rifiez l\u2019\u00e9tat de connexion de votre r\u00e9seau.<\/li>\n\n\n\n
          4. Lancez les outils de d\u00e9pannage ou de diagnostic disponibles.<\/li>\n\n\n\n
          5. Suivez les \u00e9tapes recommand\u00e9es pour r\u00e9soudre le probl\u00e8me.<\/li>\n<\/ol>\n\n\n\n

            Vous pouvez \u00e9galement utiliser la page de d\u00e9pannage Internet d\u2019AT&T<\/a> pour v\u00e9rifier votre \u00e9quipement et votre connexion.<\/p>\n\n\n\n

            6. R\u00e9initialiser votre passerelle Wi-Fi AT&T<\/h3>\n\n\n\n

            Si votre Wi-Fi ne fonctionne toujours pas, envisagez une r\u00e9initialisation d\u2019usine en dernier recours. Pour r\u00e9initialiser votre passerelle :<\/p>\n\n\n\n

              \n
            1. Localisez le bouton Reset<\/strong> sur la passerelle.<\/li>\n\n\n\n
            2. Appuyez dessus et maintenez-le enfonc\u00e9 pendant au moins 10 secondes.<\/li>\n\n\n\n
            3. Rel\u00e2chez le bouton et laissez la passerelle red\u00e9marrer.<\/li>\n\n\n\n
            4. Reconnectez-vous \u00e0 l\u2019aide des informations Wi-Fi par d\u00e9faut imprim\u00e9es sur votre passerelle.<\/li>\n\n\n\n
            5. V\u00e9rifiez si votre connexion Internet fonctionne.<\/li>\n<\/ol>\n\n\n\n

              Important :<\/strong> une r\u00e9initialisation d\u2019usine supprime les param\u00e8tres personnalis\u00e9s de la passerelle, y compris le nom et le mot de passe Wi-Fi que vous avez configur\u00e9s.<\/p>\n\n\n\n

              Si le probl\u00e8me persiste, contactez l\u2019assistance AT&T<\/a> pour v\u00e9rifier s\u2019il existe des probl\u00e8mes d\u2019\u00e9quipement ou de service.<\/p>\n\n\n\n

              Si votre Wi-Fi AT&T ne fonctionne toujours pas apr\u00e8s avoir essay\u00e9 ces correctifs, v\u00e9rifiez les param\u00e8tres de votre passerelle et les appareils connect\u00e9s pour d\u00e9tecter d\u2019autres probl\u00e8mes de configuration. Nos guides sur l\u2019acc\u00e8s \u00e0 votre routeur AT&T et sur la r\u00e9solution du probl\u00e8me d\u2019AT&T Family Map lorsqu\u2019il ne fonctionne pas peuvent vous aider pour les probl\u00e8mes li\u00e9s au compte, au r\u00e9seau et aux appareils.<\/p>\n\n\n\n

              FAQ<\/h3>\n\n\n\n

              Pourquoi mon Wi-Fi AT&T est-il connect\u00e9 mais ne fonctionne pas ?<\/h4>\n\n\n\n

              Votre appareil peut se connecter \u00e0 la passerelle m\u00eame lorsque celle-ci n\u2019a aucune connexion Internet. V\u00e9rifiez les pannes AT&T, red\u00e9marrez la passerelle et testez un autre appareil.<\/p>\n\n\n\n

              Pourquoi mon Wi-Fi AT&T clignote-t-il en rouge ?<\/h4>\n\n\n\n

              Un voyant rouge clignotant peut indiquer un probl\u00e8me de connexion ou de service, selon le mod\u00e8le de votre passerelle. Consultez le guide des voyants de votre passerelle et red\u00e9marrez l\u2019\u00e9quipement.<\/p>\n\n\n\n

              Comment corriger un Wi-Fi AT&T qui n\u2019appara\u00eet pas ?<\/h4>\n\n\n\n

              Assurez-vous que votre passerelle est allum\u00e9e et que le Wi-Fi est activ\u00e9. Rapprochez-vous de la passerelle, red\u00e9marrez votre appareil et recherchez \u00e0 nouveau les r\u00e9seaux disponibles.<\/p>\n\n\n\n

              Que dois-je faire si mon Wi-Fi AT&T ne cesse de se d\u00e9connecter ?<\/h4>\n\n\n\n

              \u00c9loignez votre passerelle des sources d\u2019interf\u00e9rences, v\u00e9rifiez les c\u00e2bles mal connect\u00e9s et red\u00e9marrez-la. Si le probl\u00e8me ne concerne qu\u2019un seul appareil, mettez \u00e0 jour les pilotes Wi-Fi ou les logiciels de cet appareil.<\/p>\n","protected":false},"excerpt":{"rendered":"

              Si votre connexion Wi-Fi AT&T ne fonctionne pas, le probl\u00e8me peut provenir d\u2019une panne de service, de la connexion \u00e0 la passerelle ou de param\u00e8tres r\u00e9seau incorrects. Suivez ces \u00e9tapes pour r\u00e9tablir votre connexion Internet. Que faire si le Wi-Fi AT&T ne fonctionne pas ? 1. V\u00e9rifiez s\u2019il y a une panne AT&T Avant de […]<\/p>\n","protected":false},"author":49,"featured_media":26859,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[10898],"tags":[],"work":[],"class_list":["post-26858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fix"],"acf":[],"yoast_head":"\nLe WiFi d\u2019AT&T ne fonctionne pas ? 6 fa\u00e7ons simples de le r\u00e9parer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/windowsreport.com\/fr\/att-wifi-ne-fonctionne-pas-6-facons-simples-dy-remedier\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le WiFi d\u2019AT&T ne fonctionne pas ? 6 fa\u00e7ons simples de le r\u00e9parer\" \/>\n<meta property=\"og:description\" content=\"Si votre connexion Wi-Fi AT&T ne fonctionne pas, le probl\u00e8me peut provenir d\u2019une panne de service, de la connexion \u00e0 la passerelle ou de param\u00e8tres r\u00e9seau incorrects. Suivez ces \u00e9tapes pour r\u00e9tablir votre connexion Internet. Que faire si le Wi-Fi AT&T ne fonctionne pas ? 1. 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