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Error when wiping a device in Exchange MobileAdmin

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Last Modified: 2011-12-05

I have installed Microsoft MobileAdmin on an Windows Server 2003 (x86) server with Exchange 2003 SP2 installed. When I use the MobileAdmin website, I am able to find devices, I can block and unblock them, but when I try to wipe them, I receive the following error:

(See Code Snippet)

 I already checked several documents from the Internet, and everything that is recommended seems to be ok.

Does anyone have experience with this problem and how to solve it?

Thank you very much for your time and help.

Kind regards,

Johan F. Hendriks


Server Error in '/MobileAdmin' Application.
Object reference not set to an instance of an object. 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error: 
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  
Stack Trace: 
[NullReferenceException: Object reference not set to an instance of an object.]
   Microsoft.Exchange.AirSync.Admin.Mailbox.getDevices() +742
   Microsoft.Exchange.AirSync.Admin.Devices.refreshDevicesTable() +138
   Microsoft.Exchange.AirSync.Admin.Devices.Page_Load(Object sender, EventArgs e) +190
   System.Web.UI.Control.OnLoad(EventArgs e) +67
   System.Web.UI.Control.LoadRecursive() +35
   System.Web.UI.Page.ProcessRequestMain() +750

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Watch Question

What is the version of MobileAdmin on your system?
There is a bug in the latest version of this tool, version 6.5.7974.0.
I would recommend you to downgrade the tool to the older version (6.5.7775.0) available on the same page:


I have downloaded v6.5.7974.0 which is on the page you sent. I have downloaded the MobileAdmin (Ex2003).exe.EXE, because we have Exchange 2003 only.

I can't find the older version on the url you provided. Do you have this version? If so, is it possible to upload it with yousendit.com? I can't find it anywhere else either if I search using Google.

Kind regards.

Give me your email ID, i will send you the older version.


Can you use yousendit.com to send me the file to johan.hendriks@getronics.com? I cannot receive executables, so please use yousendit.com.

Thank you very much.
AA23002  -  Can you please send me the older version (v6.5.7775.0) as well?   I haven't been able to get the latest version to work correctly either.   The latest version on the MS website is v6.5.8039.0, which generates the same error message that is posted above.   Can you email it to markgroszek@yahoo.com?

Bill Tonkin, M.S.IT Manager

AA23002  -  Can you please send me the older version (v6.5.7775.0) as well?
tonkinb at g mail.com

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