The request failed. The underlying connection was closed: An unexpected error occurred on a receive (4301766)

Mage Agent reports the following error

2018-01-30 16:57:47.4005 Px166C Tx11 A160 C97 M834 Error Microsoft.Exchange.WebServices.Data.ServiceRequestException: The request failed. The underlying connection was closed: An unexpected error occurred on a receive. |    at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.GetEwsHttpWebResponse(IEwsHttpWebRequest request)
   at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.ValidateAndEmitRequest(IEwsHttpWebRequest& request)
   at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest`1.Execute()
   at Microsoft.Exchange.WebServices.Data.ExchangeService.InternalBindToFolders(IEnumerable`1 folderIds, PropertySet propertySet, ServiceErrorHandling errorHandling)
   at Microsoft.Exchange.WebServices.Data.ExchangeService.BindToFolder(FolderId folderId, PropertySet propertySet)
   at Microsoft.Exchange.WebServices.Data.ExchangeService.BindToFolder[TFolder](FolderId folderId, PropertySet propertySet)
   at Quest.MigrationManager.Exchange.MigrationConnectors.Ews.ProductionExchangeService.FolderBind(WellKnownFolderName name, PropertySet propertySet)
   at Quest.MigrationManager.Exchange.MigrationConnectors.Ews.EwsSyncConnector.ConnectInternal()
   at Quest.MigrationManager.Exchange.MigrationConnectors.Ews.EwsSyncConnector.Connect()
[inner] System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. |    at System.Net.HttpWebRequest.GetResponse()
   at Microsoft.Exchange.WebServices.Data.EwsHttpWebRequest.Microsoft.Exchange.WebServices.Data.IEwsHttpWebRequest.GetResponse()
   at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.GetEwsHttpWebResponse(IEwsHttpWebRequest request)
[inner] System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. |    at System.Net.Security._SslStream.EndRead(IAsyncResult asyncResult)
   at System.Net.TlsStream.EndRead(IAsyncResult asyncResult)
   at System.Net.PooledStream.EndRead(IAsyncResult asyncResult)
   at System.Net.Connection.ReadCallback(IAsyncResult asyncResult)
[inner] System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host |    at System.Net.Sockets.Socket.EndReceive(IAsyncResult asyncResult)
   at System.Net.Sockets.NetworkStream.EndRead(IAsyncResult asyncResult)