&
No matching start tag for end element.
A Duplex header in the http://schemas.microsoft.com/2008/04/netduplex namespace is required but not found. An http error was returned.
AThe client's identifier could not be recovered from the poll message. An http error was returned.
An XML error was encountered while reading a WCF message. The message cannot be received. Ensure the message was sent by a WCF client which used an identical message encoder.
EError while reading message framing format at position {0} of stream.
GThe service no longer accepts new sessions. An http error was returned.
PAn error occurred within Windows Communication Foundation. Applications should not attempt to handle this error.
QError while reading message framing format at position {0} of stream (state: {1})
QThe framing mode used by the incoming request is invalid. It must be singleton sized. An http error was returned.
The PollingDuplexMode configured on the PollingDuplexBindingElement requires response streaming. Either enable streamed responses on the transport by setting the TransferMode to StreamedResponse or change the PollingDuplexMode to SingleMessagePerPoll.
The server has hit a PollingDuplex throttle, MaxPendingSessions, and is too busy to accept a new session at this time. An http error was returned.
The server has hit a PollingDuplex throttle, MaxSessionsPerAddress, and cannot accept another session from this client. An http error was returned.
The session has hit a PollingDuplex throttle, MaxPendingMessagesPerSession, and cannot accept another message. An http error was returned.
WAn exception occurred while processing an incoming request. An http error was returned.