{"id":22777,"date":"2019-07-14T23:54:14","date_gmt":"2019-07-14T21:54:14","guid":{"rendered":"https:\/\/eltallerdelbit.com\/?p=22777"},"modified":"2020-08-28T02:16:41","modified_gmt":"2020-08-28T00:16:41","slug":"errores-al-conectar-por-wifi-en-raspbian-stretch","status":"publish","type":"post","link":"https:\/\/eltallerdelbit.com\/errores-al-conectar-por-wifi-en-raspbian-stretch\/","title":{"rendered":"Errores al conectar por Wifi en Raspbian Stretch"},"content":{"rendered":"<h2>Vamos a ver algunos posibles <strong>errores al conectar por Wifi en <em>Raspbian Stretch<\/em><\/strong> 2019.<\/h2>\n<p>&nbsp;<br \/>\n<img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-22794\" src=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/errores-conectar-wifi-raspbian-stretch-2019.jpg\" alt=\"Errores al conectar por Wifi en Raspbian Stretch\" width=\"800\" height=\"600\" srcset=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/errores-conectar-wifi-raspbian-stretch-2019.jpg 800w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/errores-conectar-wifi-raspbian-stretch-2019-300x225.jpg 300w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/errores-conectar-wifi-raspbian-stretch-2019-768x576.jpg 768w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/errores-conectar-wifi-raspbian-stretch-2019-510x382.jpg 510w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\n&nbsp;<\/p>\n<blockquote><p>Como ya sabemos, podemos, y en caso de <strong><a href=\"https:\/\/www.raspberrypi.org\/forums\/viewtopic.php?t=211092\" rel=\"noopener noreferrer\" target=\"_blank\">error de conexi\u00f3n Wifi<\/a><\/strong> debemos revisar la actividad de nuestra Raspberry en el archivo <em>\/var\/log\/syslog<\/em>.<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<p>&#8212;> A continuaci\u00f3n algunos de los errores comentados, que podremos encontrar cuando la <strong>raspberry no conecta wifi<\/strong>:<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><em>nl80211: deinit ifname=wlan0 disabled_11b_rates=0<\/em>\u00a0 \u00a0&#8212;-&gt;\u00a0 <span style=\"color: #ff0000;\">cuando se deshabilita el wifi, por ejemplo con <em>ifdown wlan<\/em>0, aunque puede significar que hay alg\u00fan otro error que provoca la desconexi\u00f3n.<\/span><\/li>\n<li><em>wpa_supplicant wlan0 failed to initiate sched scan<\/em><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&#8212;&gt; <span style=\"color: #ff0000;\">Varios procesos <em>wpa_supplicant<\/em> en ejecuci\u00f3n.<\/span><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><em>CTRL-EVENT-ASSOC-REJECT<\/em><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&#8212;&gt; <span style=\"color: #ff0000;\">asociaci\u00f3n con el AP rechazada. Huele a configuraci\u00f3n err\u00f3nea.<\/span><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><em>CTRL-EVENT-SSID-TEMP-DISABLED<\/em><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&#8212;&gt; <span style=\"color: #ff0000;\">la wifi se desactiva. Error de hardware, o error en el archivo <em>wpa_supplicant.conf<\/em>.<\/span><\/p>\n<ul>\n<li><em><strong>CONN_FAILED<\/strong><\/em> \u00a0&#8212;-&gt; Tras varios intentos de conexi\u00f3n fallidos, recibiremos este error: Conexi\u00f3n fallida.<\/li>\n<li><em>Successfully initialized wpa_supplicant <\/em><\/li>\n<\/ul>\n<p style=\"padding-left: 40px;\"><em><strong>ctrl_iface exists and seems to be in use<\/strong> &#8211; cannot override it <\/em><\/p>\n<p style=\"padding-left: 40px;\"><em><strong>Delete &#8216;\/var\/run\/wpa_supplicant\/wlan0&#8217; manually if it is not used anymore<\/strong> <\/em><\/p>\n<p style=\"padding-left: 40px;\"><em>Failed to initialize control interface &#8216;DIR=\/var\/run\/wpa_supplicant GROUP=netdev&#8217;. <\/em><\/p>\n<p style=\"padding-left: 40px;\"><em>You may have another wpa_supplicant process already running or the file was <\/em><\/p>\n<p style=\"padding-left: 40px;\"><em>left by an unclean termination of wpa_supplicant in which case you will need <\/em><\/p>\n<p style=\"padding-left: 40px;\"><em>to manually remove this file before starting wpa_supplicant again.<\/em><\/p>\n<p>&#8212;&gt; <span style=\"color: #ff0000;\">proceso <em>wpa_supplicant<\/em> ya activo. Hemos de matar el proceso y volver a iniciar el intento de conexi\u00f3n Wifi.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-22793\" src=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/log-errores-wlan-wifi-raspberry-raspbian.jpg\" alt=\"log de errores wlan wifi en Raspbian\" width=\"800\" height=\"128\" srcset=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/log-errores-wlan-wifi-raspberry-raspbian.jpg 800w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/log-errores-wlan-wifi-raspberry-raspbian-300x48.jpg 300w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/log-errores-wlan-wifi-raspberry-raspbian-768x123.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\n&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\"><span style=\"text-decoration: underline;\">Causas de algunos de estos errores cuando <strong>Raspberry no conecta al Wifi<\/strong><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p>Todos estos errores indican que el wifi de nuestra <strong>Raspberry con <em>Raspbian Stretch<\/em>, no puede conectar al punto de acceso o router wifi<\/strong>.<br \/>\n&nbsp;<\/p>\n<p>Por los mensajes de error recibidos desde la interfaz wlan0, las <strong>causas de no poder conectar por Wifi<\/strong> pueden ser:<br \/>\n&nbsp;<\/p>\n<ul>\n<li>Wifi deshabilitado (por hardware, o por problemas de configuraci\u00f3n relativos a los archivos <em>\/etc\/network\/interfaces<\/em> , <em>wpa_supplicant.conf<\/em> o\u00a0 <em>\/etc\/dhcpcd.conf<\/em>, )<\/li>\n<li>Configuraci\u00f3n incorrecta de la red wifi:\n<ul>\n<li>Encriptaci\u00f3n incorrecta.<\/li>\n<li>Falta alguna linea de configuraci\u00f3n : <em>psk=&#8221;mypasskey&#8221;<\/em>, <em>proto=RSN<\/em>, <em>key_mgmt=WPA-PSK<\/em> o <em>pairwise=CCMP<\/em><\/li>\n<\/ul>\n<\/li>\n<li>El proceso <em>wpa_supplicant<\/em> ya se est\u00e1 ejecutando (si intentamos conectar al wifi por consola, sin <a href=\"\/matar-procesos-en-linux\/\" target=\"_blank\" rel=\"noopener noreferrer\">matar los procesos<\/a> <em>wpa_supplicant<\/em> existentes).<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\">Recordamos algunos de los m\u00e9todos de encriptaci\u00f3n m\u00e1s conocidos para Wifi:<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/modos-de-encriptacion-wifi.jpg\" alt=\"modos encriptacion wifi | Raspbian\" width=\"280\" height=\"180\" class=\"aligncenter size-full wp-image-29046\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\"><span style=\"text-decoration: underline;\">Log de errores de conexi\u00f3n Wifi en Raspbian Stretch<\/span><\/h3>\n<p>&nbsp;<\/p>\n<p>A continuaci\u00f3n vemos ejemplos de los errores mencionados, sacados del archivo <em>\/var\/log\/syslog<\/em> :<\/p>\n<pre lang=\"javascript\" line=\"1\">\r\nwpa_supplicant[539]: wlan0: Trying to associate with SSID 'MYSSID'\r\nwpa_supplicant[539]: wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16\r\nwpa_supplicant[539]: wlan0: Trying to associate with SSID 'MYSSID'\r\n\r\nwpa_supplicant[539]: wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16\r\nwpa_supplicant[539]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid=\"MYSSID\" auth_failures=1 duration=10 reason=CONN_FAILED\r\n\r\nwpa_supplicant[539]: wlan0: Failed to initiate sched scan\r\ndhclient[832]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8\r\n<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\"><span style=\"text-decoration: underline;\">Log de una Conexi\u00f3n WIFI correcta y exitosa<\/span><\/h3>\n<p>&nbsp;<\/p>\n<ul>\n<li>Podemos ver c\u00f3mo se asocia con el <em>SSID<\/em><\/li>\n<li>se configura la opci\u00f3n <em>COUNTRY<\/em><\/li>\n<li>se comienza la negociaci\u00f3n de la clave encriptada<\/li>\n<li>se recoge y aplica la configuraci\u00f3n de la IP estatica en <em>dhcpcd.conf<\/em><\/li>\n<li>Y se a\u00f1ade la ruta de la red<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<pre lang=\"javascript\">\r\nwpa_supplicant[1529]: wlan0: Trying to associate with SSID 'MYSSID'\r\nwpa_supplicant[1529]: wlan0: Associated with e4:95:6e:41:56:ae\r\nwpa_supplicant[1529]: wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0\r\nwpa_supplicant[1529]: wlan0: CTRL-EVENT-REGDOM-CHANGE init=COUNTRY_IE type=COUNTRY alpha2=US\r\nwpa_supplicant[1529]: wlan0: WPA: Key negotiation completed with e4:95:6e:41:56:ae [PTK=CCMP GTK=CCMP]\r\nwpa_supplicant[1529]: wlan0: CTRL-EVENT-CONNECTED - Connection to e4:95:6e:41:56:ae completed [id=0 id_str=]\r\ndhcpcd[1074]: wlan0: carrier acquired\r\ndhcpcd[1074]: wlan0: IAID eb:4a:18:d3\r\ndhcpcd[1074]: wlan0: probing address 192.168.8.119\/24\r\ndhcpcd[1074]: wlan0: using static address 192.168.8.119\/24\r\navahi-daemon[377]: Registering new address record for 192.168.8.119 on wlan0.IPv4.\r\ndhcpcd[1074]: wlan0: adding route to 192.168.8.0\/24\r\ndhcpcd[1074]: wlan0: adding default route via 192.168.8.1\r\nwpa_supplicant[1529]: wlan0: WPA: Group rekeying completed with e4:95:6e:41:56:ae [GTK=CCMP]\r\n<\/pre>\n<p>&nbsp;<br \/>\n<img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-22796\" src=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/conexion-wifi-exitosa-raspbian.jpg\" alt=\"conexion wifi correcta Raspbian\" width=\"800\" height=\"322\" srcset=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/conexion-wifi-exitosa-raspbian.jpg 800w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/conexion-wifi-exitosa-raspbian-300x121.jpg 300w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/conexion-wifi-exitosa-raspbian-768x309.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Como ayuda para <strong>configurar nuestro <em>Raspbian<\/em> con la red wifi<\/strong>, desde Windows (si ya hemos conectado a esa red) podr\u00edamos averiguar algunos par\u00e1metros de configuraci\u00f3n de la red wifi usando la terminal, y <a href=\"\/ver-contrasena-wifi-windows-10\/\" target=\"_blank\" rel=\"noopener noreferrer\">mostrar los detalles de la configuraci\u00f3n de la red wifi almacenada en Windows<\/a>, para utilizarla al conectar desde <em>Raspbian Stretch<\/em>.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-22798\" src=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/mostrar-parametros-config-red-wifi-en-windows-para-conectar-en-raspbian.jpg\" alt=\"mostrar parametros de configuracion de red wifi en Windows\" width=\"480\" height=\"155\" srcset=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/mostrar-parametros-config-red-wifi-en-windows-para-conectar-en-raspbian.jpg 480w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/mostrar-parametros-config-red-wifi-en-windows-para-conectar-en-raspbian-300x97.jpg 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\"><span style=\"text-decoration: underline;\">Comprobar la configuraci\u00f3n de la red Wifi en <em>Raspbian Stretch<\/em><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p>Cuando hayamos conectado a la red Wifi en Raspbian, podemos comprobar un resumen con los par\u00e1metros de configuraci\u00f3n de la red wifi:<\/p>\n<pre lang=\"javascript\" line=\"1\">\r\nsudo iwlist wlan0 scan | egrep \"Cell|ESSID|Signal|Channel|Rates\"\r\n<\/pre>\n<p>&nbsp;<br \/>\n<img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-22797\" src=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/raspbian-conexion-wifi-iwlist-caracteristicas-ssid.jpg\" alt=\"Raspbian conexion wifi iwlist caracteristicas ssid\" width=\"800\" height=\"161\" srcset=\"https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/raspbian-conexion-wifi-iwlist-caracteristicas-ssid.jpg 800w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/raspbian-conexion-wifi-iwlist-caracteristicas-ssid-300x60.jpg 300w, https:\/\/eltallerdelbit.com\/wp-content\/uploads\/2019\/07\/raspbian-conexion-wifi-iwlist-caracteristicas-ssid-768x155.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>&nbsp;<\/p>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Vamos a ver algunos posibles errores al conectar por Wifi en Raspbian Stretch 2019. &nbsp; &nbsp; Como ya sabemos, podemos, y en caso de error &#8230; <a title=\"Errores al conectar por Wifi en Raspbian Stretch\" class=\"read-more\" href=\"https:\/\/eltallerdelbit.com\/errores-al-conectar-por-wifi-en-raspbian-stretch\/\" aria-label=\"Leer m\u00e1s sobre Errores al conectar por Wifi en Raspbian Stretch\">Seguir leyendo<\/a><\/p>\n","protected":false},"author":1,"featured_media":22794,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false},"categories":[1280],"tags":[1128],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/posts\/22777"}],"collection":[{"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/comments?post=22777"}],"version-history":[{"count":0,"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/posts\/22777\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/media\/22794"}],"wp:attachment":[{"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/media?parent=22777"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/categories?post=22777"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eltallerdelbit.com\/wp-json\/wp\/v2\/tags?post=22777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}