Exchange 2013 contacts sync fails

[hood]

Hi,

I'm trying to get Exchange 2013 contacts syncing to our 3CX v16 system. I've created the impersonation account, and conafigured Exchange under the Contacts area but nothing is happening. I'm currently testing this only for my user account just so I don't break anything for the rest of the organisation.

I've reviewed the 3cxSystemService.log and can see errors similar to the below:

2019/07/01 13:04:37.861|16442|0020|Info|Synchronization of personal contacts started...

2019/07/01 13:04:37.862|16442|0020|Info|Synchronization from personal addressbook([email protected]) for extension 111 started...

2019/07/01 13:04:37.875|16442|0020|Erro|Error while checking contacts from personal addressbook [email protected] for extension 111

2019/07/01 13:04:37.876|16442|0020|Excpt|System.ComponentModel.Win32Exception (0x80090020): GSSAPI operation failed with error - An invalid status code was supplied (Unknown error).

   at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)

   at System.Net.WebRequest.<>c.<GetResponseAsync>b__68_2(IAsyncResult iar)

   at System.Threading.Tasks.TaskFactory[ICODE]1.FromAsyncCoreLogic(IAsyncResult iar, Func[/ICODE]2 endFunction, Action[ICODE]1 endAction, Task[/ICODE]1 promise, Boolean requiresSynchronization)

--- End of stack trace from previous location where exception was thrown ---

   at Microsoft.Exchange.WebServices.Data.EwsHttpWebRequest.Microsoft.Exchange.WebServices.Data.IEwsHttpWebRequest.GetResponse()

   at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.GetEwsHttpWebResponse(IEwsHttpWebRequest request)

   at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.ValidateAndEmitRequest()

   at Microsoft.Exchange.WebServices.Data.SimpleServiceRequestBase.InternalExecuteAsync()

   at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest`1.ExecuteAsync()

   at Microsoft.Exchange.WebServices.Data.ExchangeService.FindItems(FolderId parentFolderId, SearchFilter searchFilter, ViewBase view)

   at Integration.Exchange.Contacts.UserNameExtensions.GetContactsFromUserEmail(ExchangeService service, Int32 id, String ConvertPlusTo, String UserEmail)

   at Integration.Exchange.SchedulerJob.SynchronizePersonalContacts(String UserExtension, String usermail)

2019/07/01 13:04:37.876|16442|0020|Info|Sync-Job execution finished on: 1/7/19 1:04:37 pm taking 0.0151294 seconds

Does anyone have any ideas on what I've missed?

 

[Burkhard(en)]

I have the same problem with a 3cx debian installation.

Everything worked fine with version 15.5.
I've upgraded to version 16 by installing new version 16 and give the setup the 15.5 backup.

What's wrong with this?

 

[Burkhard(en)]

I am not a programmer, but I think the problem is discussed here and solutions are proposed. If these are perhaps considered in a 3CX bugfix, it may work (LibCurl implementation of HttpClient to solve the NTLM problem).

 

[hood]

After moving our PBX from Debian to Windows it worked flawlessly.