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Customer experience | Sales, Customer Insights,...
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Exchange 2016 and Dinamics 2013

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//dinamics and exchange connection stopped working. account is working, if you log in via web, everything works, the service is created. But with dinamics there is an error -

Inner ExceptionSystem.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.   

at System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)   

at System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)Inner ExceptionSystem.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host 

There are no entries in the excnahge logs at all, neither in V15//Logging//Ews nor inetpub//logs//LogFiles//W3SVC1.

it's just a server connection error, that's all. Everything was working until February 27, then abruptly stopped working.

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  • Community member Profile Picture
    2 on at
    In exchange disabled TLS 1 protocol.
    I enabled tls 1.2 according as recommended

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