{"id":33123,"date":"2026-09-20T10:49:59","date_gmt":"2026-09-20T08:49:59","guid":{"rendered":"https:\/\/wifi.se\/en\/blog\/faq\/what-is-the-pin\/"},"modified":"2026-09-20T10:49:59","modified_gmt":"2026-09-20T08:49:59","slug":"what-is-the-pin","status":"publish","type":"faq","link":"https:\/\/wifi.se\/en\/blog\/faq\/what-is-the-pin\/","title":{"rendered":"What is the PIN?"},"content":{"rendered":"<p>The <strong>PIN<\/strong> is a security code that can protect the SIM card. If the PIN is enabled, it may need to be entered when the SIM card starts in a new device or after a restart.<\/p>\n<p>In a router, an active PIN can sometimes prevent the automatic connection. That is why it is often recommended to disable the PIN on data SIMs that stay in a router permanently.<\/p>\n<p>Do not enter the PIN at random. After several wrong attempts the SIM card can be blocked and ask for a PUK.<\/p>\n<div class=\"wifi-faq-v4\" data-v4-expanded=\"1\">\n<h3>Check the SIM card systematically<\/h3>\n<p>With problems with a physical SIM card, it helps to separate the card from the router. If possible, test the SIM card in a phone with mobile data and roaming switched on and Wi-Fi switched off. If the internet works there, you know that the SIM card and the service basically work.<\/p>\n<\/div>\n<h3>Useful links<\/h3>\n<p><a href=\"https:\/\/wifi.se\/en\/product-category\/sim-kort\/\"><strong>\u2192 See SIM cards for Sweden and Europe<\/strong><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"template":"","meta":{"_acf_changed":false},"faq_category":[505],"class_list":["post-33123","faq","type-faq","status-publish","hentry","faq_category-physical-sim"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is the PIN? | Wifi.se<\/title>\n<meta name=\"description\" content=\"The PIN is a security code that can protect the SIM card. 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