diff --git a/components/free_rtos/ethernet/eth_task_settings.hpp b/components/free_rtos/ethernet/eth_task_settings.hpp
index 8ff6a2d..fa71b34 100644
--- a/components/free_rtos/ethernet/eth_task_settings.hpp
+++ b/components/free_rtos/ethernet/eth_task_settings.hpp
@@ -14,7 +14,7 @@
 
 namespace free_rtos {
     static constexpr uint32_t LINK_TASK_PRIORITY = tskIDLE_PRIORITY + 2;
-    static constexpr uint32_t LINK_TASK_STACK_SIZE  = 0x2000 / sizeof(StackType_t);
+    static constexpr uint32_t LINK_TASK_STACK_SIZE  = 0x1800 / sizeof(StackType_t);
 }
 
 #endif /* FREE_RTOS_ETHERNET_ETH_TASK_SETTINGS_HPP_ */
diff --git a/components/free_rtos/ethernet_ip/eth_udp_client.cpp b/components/free_rtos/ethernet_ip/eth_udp_client.cpp
index 9075a3b..c9e9c76 100644
--- a/components/free_rtos/ethernet_ip/eth_udp_client.cpp
+++ b/components/free_rtos/ethernet_ip/eth_udp_client.cpp
@@ -189,14 +189,20 @@ uint16_t free_rtos::EthUpdClient::fill_udp_header(UDPHandlerArgs& udpHandlerArgs
         chk_sum32 += IP_PROT_UDP + udp_len;
 
         //uint16_t chk_sum16 = eth_calcChksum2(chk_sum32, (uint8_t *)&udpHandlerArgs.udp_header, sizeof(TUdpHeader), (uint8_t *)udpHandlerArgs.p_data, udpHandlerArgs.ip_data_len);
+        //Расчет контрольной суммы совмещен с копированием данных !
         uint16_t chk_sum16 = eth_calcChksum3(udp_hdr, chk_sum32,
                                              &udp_header, sizeof(TUdpHeader),
                                              udpHandlerArgs.p_data, udpHandlerArgs.ip_data_len);
 
         udp_hdr->Chk_sum = BASE_SWAP16(chk_sum16);
+    } else {
+        uint8_t* udp_data = udpHandlerArgs.buffer + sizeof(TEthFrameHeader) + sizeof(TIpHeader) + sizeof(TUdpHeader);
+
+        *udp_hdr = udp_header;
+        memcpy(udp_data, udpHandlerArgs.p_data, udpHandlerArgs.ip_data_len);
     }
 
-    return sizeof(TUdpHeader);
+    return sizeof(TUdpHeader) + udpHandlerArgs.ip_data_len;
 }
 
 uint16_t free_rtos::EthUpdClient::Sender(HandlerArgs& handlerArgs, size_t scatter_segment)
@@ -205,7 +211,7 @@ uint16_t free_rtos::EthUpdClient::Sender(HandlerArgs& handlerArgs, size_t scatte
 
     fill_udp_header(udpHandlerArgs);
 
-    return udpHandlerArgs.ip_header_len + udpHandlerArgs.ip_data_len;
+    return sizeof(TUdpHeader) + udpHandlerArgs.ip_data_len;
 }
 
 int32_t free_rtos::EthUpdClient::Process(uint8_t * p_data, uint32_t len)