iDevice Clients Offered A Blank Certificate On Password Change When Connecting To Wireless Using RADIUS Authentication

We’ve been supporting iDevice clients for a few years now, but recently ran into an issue that even a Cisco TAC call & the ever helpful resources of JAMFNation & MacEnterprise we not able to resolve.

Our users authenticate to the wireless using their AD credentials, after a password change they should be prompted to enter their new password. Once done they should reconnect to the wireless.

Oddly, after a password change the iDevices started to be offered a blank cert such as that above

See below for more details

Mavericks & Preference Caching

Preference Caching is something that has been within OSX for some time, in Mountain Lion it was quite prominent with plists such as the Dock plist.

When Dockutil 1.1.4 was released it’s major change as noted in the release notes was to restart this preference caching service called: cfprefsd, without which the settings written to the com.apple.dock.plist would later be overwritten.

So why am I mumbling along about this?

Well, recently i’ve been involved in discussions on this & wanted to post something to give others the heads up in case anyone else struggles with it.

VPP 2.0 & “A Question Of Morality”

Back in November last year, I posted some observations VPP 2.0, Mavericks, iLife ’13 & iWork ’13 which highlighted some of the technical difficulties with this new approach.

However, taking a step back we realised that we were going to struggle with licensing the software.

After several discussions with various Apple employees we came to a solution, which was summarised by the Apple employee as “a question of morality.”

So how did the conversations get to that point? Well, let me explain..

iOS “Cannot Get Mail. The connection to the server failed.”

Several months after going launching our BYOD scheme, we started getting reports from people that their iOS devices would fail to connect to our Exchange servers for company email.

They would fail with an error like that shown in the image above.

See below for more details on this issue.

“Self Service has Encountered a Problem. Unable to contact the jamf binary. Your computer may have become unmanaged. You can make it managed by running Recon locally.”

UPDATE: We've since updated to JSS 9.3 & we no longer have this issue.

We recently updated our JSS from 8.73 > 9.22 & on the whole it’s been a non-event.

However, we started to find that some Self Service policies were erroring with the below message post the upgrade.

Below are the details on what we found, and a workaround.

SharePoint Newsfeed iOS App “We couldn’t get new data right now, try again later.”

Shortly after we resolved the an issue where the SharePoint Newsfeed iOS App was crashing, we found an issue where some people’s NewsFeed apps were getting the error “We couldn’t get new data right now, try again later.”

There are actually 2 solutions to this error, the 2nd is below & more than a little bit of hair pulling was involved!

SharePoint Newsfeed iOS App Crashing When Signing In

We recently went live with a SharePoint 2013 project, the projects launch included the SharePoint NewsFeed iOS App too.

However, before go live we noticed an issue where under some circumstances the SharePoint Newsfeed iOS App (1.0-1.2) would crash when trying to sign in.

After a period of troubleshooting, we found that the app only crashed when connecting directly to some of our SharePoint 2013 sites. But those same sites would work fine when connecting externally via our TMG.

Apple Software Update Server Not Serving Mavericks Updates After Being Upgraded To Mavericks

After upgrading my Mac servers to 10.9, I found that my 10.9 clients still were not seeing updates served via Apple Software Update Server (read:ASUS).

See below for what the issue was, and the resolution.

KDIHTTPBackingStore: :readBytes _readBytes() attempt 1 returned 0xe00002c2 (-536870206)

We had an issue where our Macs stopped NetBooting, they would attempt to NetBoot but forever stay at the spinning gear.

On Verbose booting the Macs we saw multiple errors like the below;

Apple Software Update Server Updates Stuck Waiting

We cascade Apple Software Update Server (read: ASUS), from a Master Server on our WAN as per the post here. So once an update is downloaded to the Master ASUS, the Replica’s should just replicate the updates.

This has worked great for a time, but we were missing some updates on a couple of servers. When looking in Server.app at the Software Update service it appeared that the missing updates status was “Waiting…”

Below can be found more details on the issue and the resolution.

macmule

Doing The Donkey Work To Make You Look Like A Smart Ass!!

iDevice Clients Offered A Blank Certificate On Password Change When Connecting To Wireless Using RADIUS Authentication

Mavericks & Preference Caching

VPP 2.0 & “A Question Of Morality”

iOS “Cannot Get Mail. The connection to the server failed.”

“Self Service has Encountered a Problem. Unable to contact the jamf binary. Your computer may have become unmanaged. You can make it managed by running Recon locally.”

SharePoint Newsfeed iOS App “We couldn’t get new data right now, try again later.”

SharePoint Newsfeed iOS App Crashing When Signing In

Apple Software Update Server Not Serving Mavericks Updates After Being Upgraded To Mavericks

KDIHTTPBackingStore: :readBytes _readBytes() attempt 1 returned 0xe00002c2 (-536870206)

Apple Software Update Server Updates Stuck Waiting

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