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 watch ultra 2 new black

Apple Watch Ultra 3 Finally Coming After Two-Year Hiatus

Monday June 16, 2025 8:45 am PDT by
Apple will finally deliver the Apple Watch Ultra 3 sometime this year, according to analyst Jeff Pu of GF Securities Hong Kong (via @jukanlosreve). The analyst expects both the Apple Watch Series 11 and Apple Watch Ultra 3 to arrive this year (likely alongside the new iPhone 17 lineup, if previous launches are anything to go by), according to his latest product roadmap shared with...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching in Three Months With These 12 New Features

Saturday June 14, 2025 5:45 pm PDT by
The iPhone 17 Pro and iPhone 17 Pro Max are three months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of June 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14 Pro have a...
apple wallet drivers license feature iPhone 15 pro

iPhone Driver's Licenses: These 17 U.S. States Offer Them or Will Later

Thursday June 19, 2025 11:28 am PDT by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Unfortunately, this feature continues to roll out very slowly since it was announced in 2021, with only nine U.S. states and Puerto...
iOS 18

Apple Releases iOS 18.6 Public Beta

Wednesday June 18, 2025 10:24 am PDT by
Apple today seeded the first betas of upcoming iOS 18.6 and iPadOS 18.6 updates to public beta testers, with the betas coming just a few days after Apple provided the betas to developers. Testers who have signed up for beta updates through Apple's beta site can download iOS 18.6 and iPadOS 18.6 from the Settings app on a compatible device by going to General > Software Update. When the...
ios 26 call holding

iOS 26 Beta is Hiding a New Ringtone — Here's What It Sounds Like

Thursday June 19, 2025 7:25 pm PDT by
Apple is hiding a new ringtone within iOS 26. The new ringtone is an alternative version of the existing Reflection ringtone, which has been the default ringtone since the iPhone X was released in 2017. It was discovered within the code for the first developer beta of iOS 26, but it remains hidden, so you will not find it in the list of ringtones available in the Settings app for now. It...
iOS 26 on Three iPhones

Apple Says iOS 26 Won't Be Available on These iPhone Models

Tuesday June 10, 2025 6:58 am PDT by
Apple this week revealed that iOS 26 is compatible with the iPhone 11 series and newer. That means that iOS 18 is the end of the road for the iPhone XS, iPhone XS Max, and iPhone XR, which were all released in 2018. However, those devices will continue to receive security updates for at least a few more years. iOS 26 is compatible with the following iPhone models: iPhone 16e iPhone...
new iphone lockscreen ios 26

iOS 26: Five Changes Coming to Your iPhone Lock Screen

Tuesday June 17, 2025 8:46 am PDT by
With iOS 26, Apple has made some additions to the iPhone Lock Screen that aim to make it more customizable than ever. Of course, things can always change before the software makes its way to the general iPhone-owning public, but here are five new things iOS 26 can do on the Lock Screen as of the current developer beta. Widgets Top or Bottom In iOS 18, the row of widgets on your Lock...
apple watch ultra snow

6 Features Coming to the Apple Watch Ultra 3

Tuesday February 25, 2025 9:00 am PST by
The Apple Watch Ultra 3 is expected to launch later this year, arriving two years after the previous model with a series of improvements. While no noticeable design changes are expected for the third generation since the company tends to stick with the same Apple Watch design through three generations before changing it, there are a series of internal upgrades on the way. By the time the ...
Craig Federighi No

John Gruber Reacts to Apple Declining His Interview After His Criticism

Wednesday June 18, 2025 8:10 pm PDT by
Every year between 2015 and 2024, at least one Apple executive agreed to be interviewed by Daring Fireball's John Gruber for a special WWDC episode of his podcast, The Talk Show. Last year, for example, Apple's software engineering chief Craig Federighi, marketing chief Greg Joswiak, and top AI researcher John Giannandrea joined Gruber on stage at the California Theatre in San Jose to discuss...

Top Rated Comments

Speedy2 Avatar
161 months ago
It just works.

Yeah..it used to :rolleyes:
Score: 8 Votes (Like | Disagree)
drwatz0n Avatar
161 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
161 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
161 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
161 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
161 months ago
It just works.

Yeah..it used to :rolleyes:

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