iOS Bug Causes Specific Network Name to Disable Wi-Fi on iPhones
A wireless network naming bug has been discovered in iOS that effectively disables an iPhone's ability to connect to Wi-Fi.
Security researcher Carl Schou found that after joining a Wi-Fi network with the name "%p%s%s%s%s%n" his iPhone's Wi-Fi functionality was left "permanently disabled."
Changing a hotspot's SSID did nothing to correct the problem, with even a reboot failing to make a difference, according to BleepingComputer.
Other users who were able to replicate the issue have suggested the bug could be related to the initial use in the network name of the percentage sign, which leads to an input parsing issue whereby iOS mistakenly interprets the letters following the "%" as a string-format specifier.
In C and C-style languages, string format specifiers have a special meaning and are parsed by the language compiler as a variable name or a command instead of standard text.
Android phones don't seem to be affected by the same network, but iPhones hit by the problem need to have their network settings reset before a Wi-Fi hotspot can be connected again.
To perform the reset, open the Settings app, tap General -> Reset, then tap Reset Network Settings and confirm the request at the prompt.
Popular Stories
We've still got months to go before the new iPhone 17 models come out, but a combination of dummy models and leaks have given us some insight into what we can expect in terms of camera changes.
Apple is adding new camera features, and changing the design of the camera bump for some models. You might be skeptical of dummy models, but over the years, they've proven to be a highly accurate...
Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years.
iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack)
At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
In a victory for Epic Games, Apple was today found to be in violation of a 2021 injunction that required it to allow developers to direct customers to third-party purchase options on the web using in-app links.
Judge Yvonne Gonzalez Rogers, who has been handling the Apple vs. Epic Games dispute for the last five years, said that Apple is in "willful violation" of the injunction she issued to ...
Apple's is continually working with suppliers on successive iPhone models simultaneously, which is why we often get rumored features so far ahead of launch. The iPhone 18 series is no different, and we already have a picture forming of what to expect from Apple's 2026 smartphone lineup.
If you're skipping this year's upcoming iPhone 17 series, or just plain curious about Apple's plans...
Spotify today submitted an app update to Apple that will include information on Spotify plan costs and options to subscribe through weblinks without using the in-app purchase system. Spotify will not need to pay a fee to Apple when customers subscribe to the service using alternate payment methods in the Spotify app.
In a blog post announcing the changes, Spotify said that yesterday's ruling ...
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors.
Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
A subset of Apple's software engineers started internal development of iOS 19.4 last month, according to the MacRumors visitor logs.
iOS 19.4 is expected to be released in March or April next year, so the software update is still nearly a year away. However, Apple develops both "Fall" and "Spring" versions of iOS each year, with our website's analytics logs indicating that both iOS 19.0 and...
