Migration to Office 365 Failed - CommunicationErrorTransientException at 95%

Anonymous
2016-12-14T08:02:15+00:00

Hello

I am working with a client to the point where they can move their mailboxes to Office 365 themselves.   I am having some issues - the synch works fine but when it comes to finalising i keep getting this error over and over again

FailureType       : CommunicationErrorTransientException

FailureHash       : 19cc

FailureCode       : -2146233088

MapiLowLevelError : 0

FailureSide       : Source

FailureSideInt    : 1

ExceptionTypes    : {Exchange, Transient}

ExceptionTypesInt : {1, 2}

Message           : The call to 'https://smtp.mmca.co.nz/EWS/mrsproxy.svc mmexchange.mmca.local (14.3.227.0

                    caps:05FFFF)' failed. Error details: The remote endpoint no longer recognizes this sequence. This

                    is most likely due to an abort on the remote endpoint. The value of wsrm:Identifier is not a known

                    Sequence identifier. The reliable session was faulted.. --> The remote endpoint no longer

                    recognizes this sequence. This is most likely due to an abort on the remote endpoint. The value of

                    wsrm:Identifier is not a known Sequence identifier. The reliable session was faulted.

My set up is 1 Exchange 2010 server.

Microsoft 365 and Office | Subscription, account, billing | For business | Other

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  1. Anonymous
    2016-12-26T19:59:52+00:00

    Hi Martin,

    Thanks for the updates.

    I have sent consult emails to our relevant team. I will let you know once I get any updates. Thanks for your patience.

    Regards,

    Robert

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  2. Anonymous
    2016-12-26T10:00:16+00:00

    hi

    Sorry for the late reply - have been busy with Christmas

    There is a proxy server onsite but it is called mmsec.mmca.local and Internet Explorer is set not to use it at all.

    Thanks

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  3. Anonymous
    2016-12-25T19:53:40+00:00

    Hi Martin,

    Have you checked the last reply? Please let us know the updates when you have time.

    Regards,

    Robert

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  4. Anonymous
    2016-12-23T10:14:01+00:00

    Hi Martin,

    Thanks for the information in private message. From the report, I can see the connection to the source mailbox on your on-premises failed. There is a proxy server named mmexchange.domain.local in front of the Exchange server. Is it a network firewall in your internal environment? If yes, please check there is any rule that may block the IP addresses or Ports from Exchange Online. I suggest you try to bypass it and test the migration request again.

    Regards,

    Alex

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  5. Anonymous
    2016-12-22T20:17:14+00:00

    Hi Robert,

    Sorry for being so vague - my mailboxes are all in Exchange 2010 which is also configured as the hybrid server.  I am trying to remote move the mailboxes to Office 365.

    Here are the URLs for the EWS

    [PS] C:\Windows\system32>Get-WebServicesVirtualDirectory | select name,*URL*|fl

    Creating a new session for implicit remoting of "Get-WebServicesVirtualDirectory" command...

    Name                 : EWS (Default Web Site)

    InternalNLBBypassUrl : https://mmexchange.mmca.local/ews/exchange.asmx

    InternalUrl          : https://smtp.mmca.co.nz/EWS/Exchange.asmx

    ExternalUrl          : https://smtp.mmca.co.nz/EWS/Exchange.asmx

    Thanks

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