System. The Runtime. Remoting. RemotingException
Connection refused

Description: HTTP 500 Error processing the request.

Details: Non - web exception, the exception of origin (name of the application or object) : System. The Runtime. Remoting.
The Exception stack trace:
Ats System. The Runtime. Remoting. Channels. Tcp. HostConnectionPool. The CreateConnection () [0 x00000] in & lt; Filename unknown> : 0
Ats System. The Runtime. Remoting. Channels. Tcp. HostConnectionPool. GetConnection () [0 x00000] in & lt; Filename unknown> : 0
Ats System. The Runtime. Remoting. Channels. Tcp. TcpConnectionPool. GetConnection (System. String host, Int32 port) x00000 [0] in & lt; Filename unknown> : 0
Ats System. The Runtime. Remoting. Channels. Tcp. TcpClientTransportSink. Intrinsic ProcessMessage (called IMessage -- MSG, ITransportHeaders requestHeaders, System. IO, Stream requestStream, ITransportHeaders& ResponseHeaders, System. IO. Stream& X00000 responseStream) [0] in & lt; Filename unknown> : 0
Ats System. The Runtime. Remoting. Channels. BinaryClientFormatterSink. SyncProcessMessage (called IMessage -- MSG) x00000 [0] in & lt; Filename unknown> : 0
Encountered such a problem, don't know how to solve