Microsoft Offers Workarounds for iOS 6.1 Exchange Bug

iphone_5_black_whiteiOS 6.1, which was released two weeks ago, brought with it a handful of serious bugs. The first bug, which affected 3G performance on the iPhone 4S was fixed yesterday, following Apple's release of 6.1.1 for the iPhone 4S.

The second bug involved an error that caused iOS devices running 6.1 to continuously loop when synchronizing a recurring calendar meeting invitation on Microsoft Exchange. This error, which causes excessive memory consumption, was not fixed with yesterday's 6.1.1 update.

As noted by 9to5Mac Microsoft has published an official support document offering workarounds for the error.

Microsoft offers up several fixes, including the recommendation not to process Calendar items like meeting requests on iOS 6.1 devices. The company also recommends immediately restarting the devices and renewing the device partnership to halt the continuous looping access.

Devices using iOS 6.1 should be blocked or throttled, says Microsoft, in order to reduce the effect on server resources.

While none of these options are true fixes, Microsoft mentions that it is working with Apple to investigate the issue and suggests customers open an Enterprise Support case with Apple, via Enterprise agreement or a pay-per-incident case report.

Popular Stories

Apple Logo Spotlight

Report: Apple to Launch These New Products in 2026

Sunday November 2, 2025 5:34 am PST by
Apple is planning to launch at least 15 new products in 2026, according to Bloomberg's Mark Gurman. Gurman outlined what to expect from Apple in 2026 in the latest edition of his "Power On" newsletter. He said the company is heading "into one of its most pivotal years in recent memory," with the rollout of major new Apple Intelligence features, intense regulatory pressure on the App Store,...
iOS 26

Apple Releases iOS 26.1 With Liquid Glass Toggle, Slide to Stop Alarm, New Apple Intelligence Languages and More

Monday November 3, 2025 1:11 pm PST by
Apple today released iOS 26.1, the first major update to the iOS 26 operating system that came out in September, iOS 26.1 comes over a month after iOS 26 launched. ‌iOS 26‌.1 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings > General >...
iOS 26

iOS 26.1 Available Now With These 8 New Features

Monday November 3, 2025 5:54 am PST by
Following more than a month of beta testing, Apple released iOS 26.1 on Monday, November 3. The update includes a handful of new features and changes, including the ability to adjust the look of Liquid Glass and more. Below, we outline iOS 26.1's key new features. Liquid Glass Toggle iOS 26.1 lets you choose your preferred look for Liquid Glass. In the Settings app, under Display...
Finder Siri Feature

Apple's New Siri Will Be Powered By Google Gemini

Wednesday November 5, 2025 11:57 am PST by
The smarter, more capable version of Siri that Apple is developing will be powered by Google Gemini, reports Bloomberg. Apple will pay Google approximately $1 billion per year for a 1.2 trillion parameter artificial intelligence model that was developed by Google. For context, parameters are a measure of how a model understands and responds to queries. More parameters generally means more...
Early Black Friday Deals 2

The Best Early Black Friday Apple Deals

Sunday November 2, 2025 10:04 am PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
Apple Intelligence General Feature 2

New Version of Siri to 'Lean' on Google Gemini

Sunday November 2, 2025 6:06 am PST by
In his "Power On" newsletter, Bloomberg's Mark Gurman today provided an update on the status of Apple Intelligence and the plans for it in 2026. Apple is still planning to roll out its revamped version of Siri around March of next year. The release should be accompanied by the release of a new smart home display product with speaker-base and wall-mount options. A new Apple TV and HomePod...
HomePod mini and Apple TV

New Apple TV and HomePod Mini Likely Launching Soon

Sunday November 2, 2025 5:49 am PST by
A new Apple TV and HomePod mini could launch as soon as this month, Bloomberg's Mark Gurman today suggested. In today's "Power On" newsletter, Gurman said that Apple retail stores are planning an overnight refresh on the evening of November 11, where changes will be made after closing, such as refreshing displays and placing new products for the following day. The timing of the overnight...

Top Rated Comments

Speedy2 Avatar
166 months ago
It just works.

Yeah..it used to :rolleyes:
Score: 8 Votes (Like | Disagree)
drwatz0n Avatar
166 months ago
I don't think you realize how intricate and complex an OS is. Updating other parts can break things that used to work but are unrelated.

It's called quality control and software testing.
Score: 7 Votes (Like | Disagree)
ouimetnick Avatar
166 months ago
It's called quality control and software testing.

something that is rarely done at Apple these days.

OSX 10.7 and 10.8 are horrible. Slow buggy resource hogs. Stop adding iOS features, and start fixing the OS
Score: 6 Votes (Like | Disagree)
iSunrise Avatar
166 months ago
[/COLOR]I'm suspicious that any problems involving Exchange are at least partially Microsoft's fault. I've had to deal with Exchange servers, and they SUCK. Plus, they somehow managed to fragment their own system. There are different versions of Exchange.
They removed IMAP for global mailboxes/folders, which isn´t needed anymore. If you care about that, you´re still running Exchange 2003, which isn´t affected by this iOS bug at all. And yes, there are different version of Exchange, like with any other software.

If you had to deal with iOS devices and Exchange 2007/2010 daily in a big company (2000-5000 people), your view would be a lot different. I promise.

The problems with a complex IT infrastructure (BYOD is making everything even more annoying and hard to manage) is always attributed to people who don´t have the necessary knowledge or time to run or support it. Today, one major factor that adds to that is complexity.

I´ve worked with several companies as an IT Systems Engineer (e.x. Exchange Messaging environment) and I have rarely seen such big problems like with Apple iOS devices in the whole IT (communication) infrastructure. There obviously is a problem with Apple, who doesn´t seem to communicate their releases and/or just doesn´t test them throughfully, because they just don´t care about MS or other products. They want their services to work first and at the very end of the list, there´s "other" products. At least it seems that way.

Normally you would throughfully test a new release like 6.1, especially if it´s mainly a bugfix release. If there´s barely any new features it should under no circumstances break anything that has worked before.

However, with almost any release since iOS 5.0 there were some Exchange related problems, which I personally have verified through intensive testing and working very close with MS, giving feedback to MS as well as Apple. These bugs weren´t there because of installed Exchange hotfixes, Exchange SPs or configuring problems with Exchange. They simply appeared after you connected an iOS device with an users mailbox, used the calendar on the iOS device and approved or declined a meeting request (and that´s only one problem) that was send e.x. with Office on another client to Exchange. We´ve always had to tell everyone not to process calendar items such as meeting requests on iOS devices since iOS 5.0, to be safe.

Also, there was some annoying bug, where whole meetings got deleted as a whole, which was very concerning. All this was fixed when 5.1.1 was released. 5.1.1 was an extremely good release, it just worked.

Now the part were it gets interesting:
"Real" Macs like Macbooks or Macbook Pros weren´t affected at all. Every single problem was an iOS problem and it could be reproduced, some needed a couple of dozen steps to reproduce them, because iOS seems to work very differently than MacOS, when it comes to their mail code.

Another thing, while you made it sound like MS is at fault here:
Of course there are different versions of Exchange, but if you´re a company you don´t care at all, because you shouldn´t mix Exchange versions forever, while being in a live production environment. You only do that while you´re in the migration phase (which can last very long in big companies) and then you have to mix, otherwise you cannot migrate. This is not MS related at all, that´s just the way it´s being done in IT, because you cannot migrate everything in one single step if the company is too big.

I´ve rarely seen such a good working and supported product as Exchange is. Especially if you take into account how extremely complex a messaging infrastructure is, with various hardware and OSes communicating with it. People just like to blame Microsoft for everything, because of their huge market share in the past (and with Exchange, they still are big). MS was everywhere. MS was an easy target.

Yes, MS also does a lot of things that just seem stupid or are annoying from a single user perspective, but if we´re only talking about software, software will always come with bugs, it´s just a matter of how important they are or how they affect the big picture. Some bugs are there, but they will never be found, because they just don´t matter.

Apple needs to stop that madness that is constant Exchange iOS bugs, while MacOS works perfectly fine.

PS: It´s like Apple´s iOS WLAN problems that are there since 6.0. I have had like a couple dozens of 5.1.1 devices with the same professional WLAN capable devices like firewalls, access points or routers that just worked perfectly. After I´ve upgraded to 6.0, there were reception problems, constant lockups of the iOS WLAN (needed to restart or reset the device, sometimes even a full restore) or the device just didn´t find the WLAN at all. At home, when I enable to hide my SSID, 5.1.1 finds my WLAN, 6.0 just doesn´t care. So I needed to disable that option in my router, just because Apple wants it that way.

I just don´t get why Apple makes constant changes to their WLAN code and breaks things, I just don´t get it. Looks like a job opportunity.
Score: 5 Votes (Like | Disagree)
QuarterSwede Avatar
166 months ago
Didn't exchange work fine on iOS 5? If wasn't broken, why did iOS 6 seem to break exchange?
I don't think you realize how intricate and complex an OS is. Updating other parts can break things that used to work but are unrelated.
Score: 5 Votes (Like | Disagree)
a.gomez Avatar
166 months ago
It just works.

Yeah..it used to :rolleyes:

Welcome to the iOS years.
Score: 5 Votes (Like | Disagree)