JVH Consulting's Blog

I found this cheat to reset the connection between the Essentials Server Dashboard and O365.

First check the log to find out why it’s failing.  Log file is found here:

C:\ProgramData\Microsoft\Windows Server\Logs\SharedServiceHost-EmailProviderServiceConfig.log

If log looks something like the below, then follow steps to fix:

BecWebServiceAdapter: Connect to BECWS failed due to known exception : System.ServiceModel.EndpointNotFoundException: There was no endpoint listening at https://bws902-relay.microsoftonline.com/ProvisioningWebservice.svc?Redir=1098557810&Time=636356539931802459 that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. —> System.Net.WebException: Unable to connect to the remote server —> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused

To fix:

Open Regedit and navigate to the following key:

HKEY_Local_Machine\Software\Microsoft\Windows Server\Productivity\O365Integration\Settings

Delete the BecEndPointAddress key.

Close Regedit and re-open the Essentials Dashboard.  Re-attempt to integrate with O365 and this time it should work.

Reference Link:  https://social.technet.microsoft.com/Forums/windowsserver/en-US/6c855e8f-795f-485c-9b29-2732a45e94a6/i-cannot-integrate-office-365-with-server-2012r2?forum=winserveressentials>