Princeton University Details iPad Wireless Networking Issues
Princeton University has detailed wireless issues with Apple's iPad that have resulted in the university blocking several of the devices from its wireless network. While frequently invisible to end users and apparently unrelated to most early complaints from iPad owners about Wi-Fi connectivity issues, the iPad issue documented by Princeton can result in interference of network usage by other devices.
Princeton reports that they have seen a number of iPads with errors in their Dynamic Host Configuration Protocol (DHCP) protocol.
The malfunction we see is that the iPad uses DHCP to obtain a lease, renews the lease zero or more times (as expected), but then continues using the IP address without renewing the lease further. The iPad allows the DHCP lease to expire, but it continues using the IP address after allowing the lease to expire. The incident continues for some time (typically hours); usually it ends when the iPad asks for a new DHCP lease, or the iPad disconnects from the network.
Essentially, the iPad is continuing to use IP addresses that have already been reclaimed by the university's routers. Similar problems could explain certain issues that users have been seeing in their own personal use of the device, although user complaints regarding Wi-Fi performance have primarily focused on poor signal strength and inconsistent connections.
As of April 19th, 25 of the 41 iPads on the campus network had shown this issue while 9 have been blocked due to repeated problems. Princeton is reportedly working with Apple to address this issue, but has developed a tentative workaround to assist with the problems. Some of the nine blocked iPads have since been unblocked after the owners performed the suggested workaround. Princeton's current policy with respect to iPads is to allow them onto their network, and in the case of DHCP lease issues, notify the user and point them to the workaround. Only if problems continue after that point would a specific device be blocked.
Popular Stories
Apple's annual four-day Black Friday through Cyber Monday shopping event is returning on Friday, November 28 through Monday, December 1 in many countries, including the United States, Canada, Australia, New Zealand, France, Germany, Italy, Spain, the United Kingdom, Belgium, the Netherlands, Sweden, Thailand, and others.
During the shopping event, customers can get an Apple gift card with...
iOS 26.2 is currently in beta testing. The upcoming update includes a handful of new features and changes on the iPhone, including a new Liquid Glass slider for the Lock Screen's clock, offline lyrics for Apple Music, and more.
In a recent press release, Apple confirmed that iOS 26.2 will be released to all users in December, but it did not provide a specific release date.
Keep reading...
Apple has begun selling the Hikawa Phone Grip and Stand, a new limited-edition iPhone accessory designed with accessibility in mind.
Designed by LA-based Bailey Hikawa to celebrate the 40th anniversary of accessibility at Apple, the grip uses magnets to securely snap onto any iPhone with MagSafe.
Apple says it can be removed with ease, and doubles as a stand with two different viewing...
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max.
One thing worth...
Black Friday is just over a week away, and iPad deals have finally started to flood in at retailers like Amazon and Best Buy. Below we're tracking discounts on every current generation iPad, including lowest-ever prices on M3 iPad Air and M5 iPad Pro, plus steep markdowns on iPad and iPad mini.
Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a ...
Apple's eighth-generation iPad mini is highly likely to arrive next year, offering a significant refresh of the device with at least four major new features.
OLED Display
The next-generation version of the iPad mini could feature an OLED display, as part of Apple's plan to expand the display technology across many more of its devices. Apple's first OLED device was the Apple Watch in 2015, ...
Apple Watch owners have been voicing their frustration online over changes to the Workout app that Apple introduced in watchOS 26, with many finding the redesigned interface makes starting exercises difficult and exasperating.
When Apple launched watchOS 26 in September, the Workout app went from large, easily tapped workout tiles to a scrolling, corner-button interface. Instead of tapping a ...
Apple's first foldable iPhone is expected to launch alongside the iPhone 18 Pro models in fall 2026, and it's shaping up to include two standout features that could set it apart from the competition.
The book-style foldable will reportedly feature an industry-first 24-megapixel under-display camera built into the inner display, according to a recent JP Morgan equity research report. That...
On this week's episode of The MacRumors Show, we talk through all of the new features and improvements expected to come to next year's iPhone 18 Pro and iPhone 18 Pro Max models.
Subscribe to The MacRumors Show YouTube channel for more videos
Apple's next-generation iPhones are less than ten months away and we already have a good idea about what to expect based on corroborated leaks, rumors,...
