c# - connection was aborted by the software in your host machine -

hi had working middle-ware program using c#. program sends request website , pulls data there . getting error , know since website url has been changed .

before url : ip:port url has been changed : ip:port/nugaweb

how can change program request go new url . adding buffer , not sure if can .

error :

system.net.sockets.socketexception: established connection aborted software in host machine    @ system.net.sockets.socket.receive(byte[] buffer, int32 offset, int32 size, socketflags socketflags)    @ system.net.sockets.socket.receive(byte[] buffer)    @ myrfid.connsocket.getresponse(int32 protocol, string sendstring) in d:\birth_daytestnewserver\myrfid\connsocket.cs:line 87} 

connection.cs

class connsocket     {         public const int overhit_add_user = 100;         public const int overhit_get_average_of_age= 101;         public const int overhit_write_test_result = 102;         public const int overhit_user_list = 103;         public const int overhit_user_sex= 105;          public const string header="ff00";         public const string tailer="/$/$";         private socket clientsocket = null;         //public static string ip = "121.158.41.217";          public static string ip = "165.132.221.47";          private byte[] receivedata;          private void connection()         {              try             {                 receivedata=new byte[4096];                  clientsocket = new socket(addressfamily.internetwork, sockettype.stream, protocoltype.tcp);                  //clientsocket.connect(ip, 8090);             clientsocket.connect(ip, 8080);             }             catch (exception ex)             {                 messagebox.show(ex.tostring());             }         }           public string getresponse(int protocol, string sendstring)         {             string sendmsg = "";             string recmsg = "";             byte[] send = null;             byte[] rec = null;             connection();             try             {                 encoding korean = encoding.getencoding("euc-kr");                 encoding enc = encoding.ascii;                 rec=new byte[1024];                 //serverstream = clientsocket.getstream();                   sendmsg = header + "&" + protocol + "&" + sendstring + tailer;             //step3 :sendmsg=""                    send = new byte[korean.getbytes(sendmsg).length];       //step4 : sendmsg = "ff00&105&eecb0b7e000104e0/$/$"     sendmsg becomes "ff00&105&/$/$" , becomes "ff00&101&eecb0b7e000104e0&28/$/$"  , "ff00&101&&28/$/$"                    send=korean.getbytes(sendmsg);                  //i tried adding check on sendmsg here                 if (sendmsg == "ff00&105&/$/$")                 {                     messagebox.show("card not placed !! place card , please try again  ");                     return null;                      //system.environment.exit(0);                 }                  clientsocket.send(send);                  int reclen = 0;                 reclen=clientsocket.receive(rec);                  recmsg = korean.getstring(rec, 0, reclen);                    //sw.write(send);                            /*                 rec = new byte[1024];                 rec=korean.getbytes(sr.readtoend());                 */                 /*                 while (!sr.endofstream)                 {                     recmsg=recmsg+sr.readline();                 }                  * */                }              catch (exception ex)                                                       {                messagebox.show(ex.tostring());              }                   /*i tried               catch (socketexception e)             {                 if (e.socketerrorcode == wouldblock)                 {                     m_socket.blocking = true;                     m_socket.send(buffer, buffersize, socketflags.none);                     m_socket.blocking = false;                 }             }*/                           {                   if (clientsocket != null)                 {                     clientsocket.close(); clientsocket = null;                 }              }             return recmsg;         }     }