If you have configured Blackberry Enterprise Server to use EWS for calendar access and free/busy information lookup, you may encounter the following errors in the logs of the BES server:

BES01_CALH_01_<date>.log
[20751] (03/26 00:03:31.030):{0x1CE4} {TestUser@example.com} WSUser::SetUser - Failed to create EWS::Service: HRESULT 80040154, EWS.DLL possibly not registered or mismatched in version

BES01_MAGT_01_<date>.log
[30000] (08/31 17:19:04.565):{0x24C} {Agent Startup}-CalHelperController::InitializeEws- COM Exception: Code = 80004003, WCode = 0000, Code meaning = Invalid pointer, Source = <none>
[30000] (08/31 17:19:04.565):{0x24C} {Agent Startup}-CalHelperController::I  ...

When running Blackberry Enterprise Server (BES) 5.0.4 in an environment with users whose mailboxes are located on Exchange 2013 servers, you may encounter the following problem: certain, but not all users lose their connectivity on their mobile devices. They can no longer send or receive e-mail, calendar, contacts.

When looking at the event viewer, an application crash is logged:

Event 1000 Application Error
Faulting application name: BlackBerryAgent.exe, version: 5.0.4.17, time stamp: 0x502e604b
Faulting module name: exmapi32.dll, version: 6.5.8320.0, time stamp: 0x517e1c40
Exception code: 0xc0000005
Fault offset: 0x00010188
Faulting process id: 0x1fbc
Faulting application start time: 0x0  ...

Wanted to install the latest BES Express (at the time of writing, this was 5.0.4) on a fresh Windows-server. Starting Setup.exe briefly shows the Blackberry splash-screen, then immediately crashes ("this program has stopped working...").

Apparently, RIM did some sloppy programming: changing the regional settings to English (US) or English (UK) resolves the issue.

Once in a while, it may become necessary to update the Blackberry OS to a newer version. I've noticed with the service providers in Belgium that they are usually some versions behind. If whenever you need to run an application that requires a more sane (recent) version of the BB OS, you get stuck because you cannot install and/or run it.

Now you may wonder what the problem is?
Indeed, one can download the latest version from the Blackberry site, but doing so may actually break your setup, as there are quite a few things to consider:

Does your device support the new OS?

Does your service provider support the new OS?

If you are running BES, is it new enough to support the new OS?

Luckily,  ...

Had a problem with a client of ours, running Blackberry Enterprise Manager. One of the devices, a Blackberry 8820, stopped receiving any sync messages. Internet on the device kept working, and the internet e-mail account worked as well, but all communication between the BES and the device failed.

The first thing I did was to completely wipe the device, as I assumed there was a problem with the pairing between the server and the thing. But when I tried to reactivate it, it indefinitely hung on the first phase:

Quote
user@domain activating

As I was troubleshooting using the support site of Blackberry (where they explain the steps that occur when activating), I noticed that the activation e-  ...