Reprinted from TidBITS by permission; reuse governed by Creative Commons license BY-NC-ND 3.0. TidBITS has offered years of thoughtful commentary on Apple and Internet topics. For free email subscriptions and access to the entire TidBITS archive, visit http://www.tidbits.com/ watchOS 4.0.1 Aims to Fix Apple Watch Series 3 Cellular Problems Adam C. Engst Apple has released watchOS 4.0.1, which fixes a reportedly rare bug that caused the Apple Watch Series 3 to join unauthenticated public Wi-Fi networks in coffee shops and hotels. Such networks require the user to submit a form on a Web page before the network can be accessed, and there's no way to do that on an Apple Watch. [1][tn_watchOS-401.jpg] The real impact of this bug, however, is that Apple Watch Series 3 units were supposedly connecting to these public Wi-Fi networks instead of using the cellular connection. Since the Wi-Fi networks didn't allow actual usage, the Apple Watch couldn't get any Internet access. Our Apple Watch Series 3 hasn't arrived yet, so we can't confirm that watchOS 4.0.1 resolves all the cellular connectivity issues reported in early reviews (see '[2]Apple's Late 2017 Collection: A Roundup of Reviews,' 26 September 2017). However, we can confirm that watchOS 4.0.1 is available only for the Apple Watch Series 3 ' it's not appearing for earlier models. The update is a 42.9 MB download, and you can get to it in the Watch app on your iPhone, in General > Software Update. This one seems like a no-brainer to download immediately. References 1. http://tidbits.com/resources/2017-10/watchOS-401.jpg 2. http://tidbits.com/article/17500 .