The underlying connection was closed: An unexpected error occurred on a send.

[Guest andreif]

Getting this exception, when trying to subscribe for prices stream:

CityIndex.JsonClient.ApiException: The underlying connection was closed: An unexpected error occurred on a send. REQUEST INFO: ItemState : Pending Url : https://ciapipreprod.cityindextest9.co.uk/tradingapi/sessionMethod : POST Target : session UriTemplate : / Parameters : UserName: xx189949 Password: ***** Request URI :https://ciapipreprod.cityindextest9.co.uk/tradingapi/session Request Headers : Accept-Encoding: gzip, deflate,gzip, deflate Host: ciapipreprod.cityindextest9.co.uk Content-Length: 45 Expect: 100-continue Connection: Keep-Alive CacheDuration : 00:00:00 RetryCount : 0 ThrottleScope : data Expiration : 0001-01-01 00:00:00Z ResponseText : NULL —–> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. —–> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. —–> 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) —– End of inner exception stack trace —– at System.Net.TlsStream.EndWrite(IAsyncResult asyncResult) at System.Net.PooledStream.EndWrite(IAsyncResult asyncResult) at System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar) —– End of inner exception stack trace —– at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult) at CityIndex.JsonClient.RequestController.<>c__DisplayClass91.<EnqueueRequest>b__8(IAsyncResult ar, RequestHolderrequestHolder) inc:\dev\workspace\CIAPI.CS\src\JsonClient\RequestController.cs:line290
   --- End of inner exception stack trace ---
   at CityIndex.JsonClient.Client.Request[TDTO](String target,String uriTemplate, String method, Dictionary2 parameters, TimeSpan cacheDuration, String throttleScope) in c:\dev\workspace\CIAPI.CS\src\JsonClient\Client.cs:line 186 at CIAPI.Rpc.Client.LogIn(String userName, String password) in c:\dev\workspace\CIAPI.CS\src\CIAPI\Rpc\ApiClient.cs:line 103 at CityIndexScreensaver.Data.EnsureConnection() in D:\projects\CIAPI\CityIndexScreensaver\CityIndexScreensaver\Data.cs:line 55 at CityIndexScreensaver.Data.SubscribePricesThreadEntry(String topic, Action`1 onUpdate) in D:\projects\CIAPI\CityIndexScreensaver\CityIndexScreensaver\Data.cs:line 73 Exception ResponseText:

[Guest sky.sanders]

that looks like it is failing on login via rpc client and the error message is not helpful at all.

2 questions:

1. are you using silverlight? (if so, add it as a tag)
2. can you do a simple rpc client login with your credentials?

(reply in comments to this answer)

[Guest andreif]

that looks like it is failing on login via rpc client and the error message is not helpful at all.

2 questions:

1. are you using silverlight? (if so, add it as a tag)
2. can you do a simple rpc client login with your credentials?

(reply in comments to this answer)

It was both in WPF and Silverlight. But it doesn’t happen today yet.