Today, Thursday, September 30th, a large number of electronic devices will stop working; they will no longer be able to connect to the network. Tablets, game consoles, televisions, and older cell phones will be affected by this outage due to the expiration of Let\'s Encrypt\'s HTTPS authentication certificate. Devices manufactured after 2017 will not have any problems functioning, as they are manufactured with ISRG Root X1, which does not expire until 2035. It is estimated that around 30% of Android phones will lose network access, and many of these devices can be updated to avoid being discontinued. Some of the devices that will stop working are the following: iPhone or iPad with iOS 6 or earlier Computers with Windows XP Service Pack 2 or macOS 10.12.0 or earlier Phones and tablets with Android Gingerbread 2.3.6 or earlier BlackBerry with versions earlier than 10.3.3 Nintendo 3DS and PlayStation 3 or PS4 (outdated versions)