unable to connect to server exception while writing for SmsServiceProvider.dll

Hi All,

I am working SmsServiceProvider.dll to send an sms otp in FIM server

When I gave my sms vendor url in SmsServiceProvider dll. I got the Inner exception as follows:

System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it xx.x.xxx.xx:xx
   at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception)

Same url when I use with a console application it is sending the sms. Please help me out for any solution or a workaround.

Thanks

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