diff --git a/firmware/wifiHD/src/ard_spi.c b/firmware/wifiHD/src/ard_spi.c
index 054f1ea..728b056 100644
--- a/firmware/wifiHD/src/ard_spi.c
+++ b/firmware/wifiHD/src/ard_spi.c
@@ -1204,13 +1204,13 @@ cmd_spi_state_t avail_data_tcp_cmd_cb(char* recv, char* reply, void* ctx, uint16
 	CHECK_ARD_NETIF(recv, reply, count);
 
 	CREATE_HEADER_REPLY(reply, recv, PARAM_NUMS_1);
-	uint8_t dataAvail = 0;
+	uint16_t dataAvail = 0;
     if ((recv[3]==1)&&(recv[4]>=0)&&(recv[4]<MAX_SOCK_NUM))
     {
-    	dataAvail = isAvailTcpDataByte((uint8_t)recv[4]) ? 1 : 0;
+    	dataAvail = getAvailTcpDataByte((uint8_t)recv[4]);
     }
-	PUT_DATA_BYTE(dataAvail, reply, 3);
-	END_HEADER_REPLY(reply, 5, *count);
+	PUT_DATA_INT_NO(dataAvail, reply, 3);
+	END_HEADER_REPLY(reply, 6, *count);
 
 	INFO_SPI_POLL("dataAvail:%d\n", dataAvail);
 
diff --git a/firmware/wifiHD/src/ard_utils.c b/firmware/wifiHD/src/ard_utils.c
index 8bb8e39..a361703 100644
--- a/firmware/wifiHD/src/ard_utils.c
+++ b/firmware/wifiHD/src/ard_utils.c
@@ -273,6 +273,12 @@ bool isAvailTcpDataByte(uint8_t sock)
 	return false;
 }
 
+uint16_t getAvailTcpDataByte(uint8_t sock)
+{
+	uint16_t len = calcMergeLen(sock);
+	INFO_UTIL("Availabled data: %d\n", len);
+	return len;
+}
 
 
 bool getTcpDataByte(uint8_t sock, uint8_t* payload, uint8_t peek)
diff --git a/firmware/wifiHD/src/ard_utils.h b/firmware/wifiHD/src/ard_utils.h
index 423f052..5dee3c0 100644
--- a/firmware/wifiHD/src/ard_utils.h
+++ b/firmware/wifiHD/src/ard_utils.h
@@ -130,6 +130,13 @@
     BYTE[IDX+2] = (uint8_t)(_int & 0xff);              	\
 }
 
+#define PUT_DATA_INT_NO(INT, BYTE, IDX)   {           		\
+    uint16_t _int = INT;								\
+	BYTE[IDX] = 2;                            			\
+    BYTE[IDX+2] = (uint8_t)((_int & 0xff00)>>8);       	\
+    BYTE[IDX+1] = (uint8_t)(_int & 0xff);              	\
+}
+
 #define PUT_DATA_BYTE(DATA, BYTE, IDX)   {           	\
     BYTE[IDX] = 1;                                      \
     BYTE[IDX+1] = (uint8_t)DATA;						\
@@ -235,9 +242,10 @@
 #endif
 
 #define DUMP_TCP_STATE(TTCP) do {\
-		INFO_TCP("ttcp:%p tpcb:%p state:%d lpcb:%p state:%d\n", \
+		INFO_TCP("ttcp:%p tpcb:%p state:%d lpcb:%p state:%d left:%d sent:%d\n", \
 			TTCP, TTCP->tpcb[0], (TTCP->tpcb[0])?TTCP->tpcb[0]->state:0, \
-			TTCP->lpcb, (TTCP->lpcb)?TTCP->lpcb->state:0); \
+			TTCP->lpcb, (TTCP->lpcb)?TTCP->lpcb->state:0, \
+			(TTCP)?TTCP->left:0, (TTCP)?TTCP->buff_sent:0); \
 			} while(0);
 			
 #define Mode2Str(_Mode) ((_Mode==0)?"TRANSMIT":"RECEIVE")			
@@ -275,6 +283,8 @@ bool getTcpData(uint8_t sock, void** payload, uint16_t* len);
 
 bool getTcpDataByte(uint8_t sock, uint8_t* payload, uint8_t peek);
 
+uint16_t getAvailTcpDataByte(uint8_t sock);
+
 bool isAvailTcpDataByte(uint8_t sock);
 
 uint8_t freeTcpData(uint8_t sock);