[lwip-users] netconn API reliability issue

[newbie]

hello LwIP,
I'm developping a TCP client application. I'm using the netconn API
(v1.4.1). 
In simple tests, I tried to exchange data betwenn server. transmission
succeeded only for 17 sequential exchanges then I get error from
netconn_recv.
I have to to note that this behaviour presists for both blocking and
non-blocking reception. I've attached my lwipopts.h
The client code seems as:
              l_eConnErr |= 
netconn_write_partly((*(l_sConnInfo.m_ppsConn)), Eth_Data, l_uiRcvByteCount,
NETCONN_NOCOPY, &l_uiSentByteCount);
       /* ... */
              if (l_eConnErr != ERR_OK)
              {
/* hadle connection error */
              }
              if (l_eConnErr == ERR_OK)
              {
                  l_eConnErr |= netconn_recv((*(l_sConnInfo.m_ppsConn)),
&l_psIONetBuf);

                if(l_eConnErr == ERR_OK)// && (Cnt > 0))
                {
                  l_eConnErr |= netbuf_data(l_psIONetBuf,
(void**)(&Eth_Data), (uint16_t*)&l_uiRcvByteCount);
                  /* ... */
                  netbuf_free(l_psIONetBuf);
                }

Thank you for helping.

lwipopts.h <http://lwip.100.n7.nabble.com/file/n30172/lwipopts.h>  



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