diff --git a/cube/User/Src/main2.c b/cube/User/Src/main2.c
index 8fc823f..c22bfe1 100644
--- a/cube/User/Src/main2.c
+++ b/cube/User/Src/main2.c
@@ -190,11 +190,11 @@ void my_setup_2() {
 
     wizInit();
 
-    frontendInit();
-    frontendSetThreshold(240);
+//    frontendInit();
+//    frontendSetThreshold(240);
 
-    schAdd(scheduleMBusRequest, NULL, 0, 1000);
-    schAdd(triggerMBusRequest, NULL, 0, 100);
+//    schAdd(scheduleMBusRequest, NULL, 0, 1000);
+//    schAdd(triggerMBusRequest, NULL, 0, 100);
 }
 
 void my_loop() {
diff --git a/cube/User/Src/wizHelper.c b/cube/User/Src/wizHelper.c
index 606633a..5e2630a 100644
--- a/cube/User/Src/wizHelper.c
+++ b/cube/User/Src/wizHelper.c
@@ -8,6 +8,8 @@
 #include <PontCoopScheduler.h>
 #include <utils.h>
 #include <wizchip_conf.h>
+#include <string.h>
+#include <dhcp.h>
 
 
 wiz_NetInfo netInfo = {
@@ -15,7 +17,7 @@ wiz_NetInfo netInfo = {
     .dhcp = NETINFO_DHCP
 };
 
-#define DHCP_BUFFER_SIZE 1024
+#define DHCP_BUFFER_SIZE 2048
 static uint8_t dhcpBuffer[DHCP_BUFFER_SIZE];
 
 const uint8_t DHCP_SOCK = 6;
@@ -32,42 +34,29 @@ void wiz_cs_deselect(void) {
 uint8_t wiz_spi_readbyte(void) {
     uint8_t rbuf;
     HAL_SPI_Receive(&etherSpi, &rbuf, 1, HAL_MAX_DELAY);
+    coloredMsg(LOG_YELLOW, "R: %02x", rbuf);
     return rbuf;
 }
 
 void wiz_spi_writebyte(uint8_t wb) {
+    coloredMsg(LOG_YELLOW, "W: %02x", wb);
     HAL_SPI_Transmit(&etherSpi, &wb, 1, HAL_MAX_DELAY);
 }
 
 void wiz_spi_readburst(uint8_t* pBuf, uint16_t len) {
-
+    HAL_SPI_Receive(&etherSpi, pBuf, len, HAL_MAX_DELAY);
+    coloredMsg(LOG_YELLOW, "RB: %d %02x %02x %02x", len, pBuf[0], pBuf[1], pBuf[2]);
 }
 
 void wiz_spi_writeburst(uint8_t* pBuf, uint16_t len) {
-
+    HAL_SPI_Transmit(&etherSpi, pBuf, len, HAL_MAX_DELAY);
+    coloredMsg(LOG_YELLOW, "WB: %d %02x %02x %02x", len, pBuf[0], pBuf[1], pBuf[2]);
 }
 
 static void wizReset(bool b) {
     HAL_GPIO_WritePin(ETHER_RES_GPIO_Port, ETHER_RES_Pin, b ? GPIO_PIN_RESET : GPIO_PIN_SET);
 }
 
-static void wizDHCPHandler(void *handle) {
-    static uint8_t lastStablePhyLink = 255;
-    uint8_t phyLink = 0;
-    int8_t res = ctlwizchip(CW_GET_PHYLINK, (void*) &phyLink);
-    if (lastStablePhyLink != phyLink) {
-        coloredMsg(LOG_RED, "wizdh, ctlwizchip returns %d, phy link changed to %d", res, phyLink);
-        lastStablePhyLink = phyLink;
-    }
-    if (phyLink == PHY_LINK_ON) {
-        static uint8_t lastRes = 255;
-        uint8_t res = DHCP_run();
-        if (lastRes != res) {
-            coloredMsg(LOG_RED, "wizdh, dhcp state has changed: %d", res);
-            lastRes = res;
-        }
-    }
-}
 
 static void wizDHCPAssign() {
     coloredMsg(LOG_RED, "wizda");
@@ -77,6 +66,37 @@ static void wizDHCPUpdate() {
     coloredMsg(LOG_RED, "wizdu");
 }
 
+static void wizDHCPHandler(void *handle) {
+    static uint8_t lastStablePhyLink = 255;
+    static uint8_t lastDhcpRes = 255;
+    static bool dhcpInitialized = false;
+
+    uint8_t phyLink = 0;
+    int8_t res = ctlwizchip(CW_GET_PHYLINK, (void*) &phyLink);
+    if (lastStablePhyLink != phyLink) {
+        coloredMsg(LOG_RED, "wizdh, ctlwizchip returns %d, phy link changed to %d", res, phyLink);
+        lastStablePhyLink = phyLink;
+    }
+    if (phyLink == PHY_LINK_ON) {
+
+        if (! dhcpInitialized) {
+            memset(dhcpBuffer, 0, DHCP_BUFFER_SIZE);
+            reg_dhcp_cbfunc(wizDHCPAssign, wizDHCPUpdate, NULL);
+            DHCP_init(DHCP_SOCK, dhcpBuffer);
+            coloredMsg(LOG_RED, "wizI, DHCP initialized");
+            dhcpInitialized = true;
+        }
+
+        uint8_t res = DHCP_run();
+
+        if (lastDhcpRes != res) {
+            coloredMsg(LOG_RED, "wizdh, dhcp state has changed: %d", res);
+            lastDhcpRes = res;
+        }
+    }
+}
+
+
 int wizInit() {
     coloredMsg(LOG_RED, "wizI, resetting Ethernet module");
     wizReset(true);
@@ -89,7 +109,8 @@ int wizInit() {
     coloredMsg(LOG_GREEN, "wizI, cs funcs registed");
     reg_wizchip_spi_cbfunc(wiz_spi_readbyte, wiz_spi_writebyte);
     coloredMsg(LOG_GREEN, "wizI, spi funcs registed");
-    // reg_wizchip_spiburst_cbfunc(void (*spi_rb)(uint8_t* pBuf, uint16_t len), void (*spi_wb)(uint8_t* pBuf, uint16_t len));
+    reg_wizchip_spiburst_cbfunc(wiz_spi_readburst, wiz_spi_writeburst);
+    coloredMsg(LOG_GREEN, "wizI, spi burst funcs registed");
 
 
     coloredMsg(LOG_RED, "wizI, initializing Ethernet module");
@@ -99,12 +120,7 @@ int wizInit() {
     wizchip_setnetinfo(&netInfo);
     coloredMsg(LOG_RED, "wizI, netinfo set to Ethernet module");
 
-    memset(dhcpBuffer, 0, DHCP_BUFFER_SIZE);
-    reg_dhcp_cbfunc(wizDHCPAssign, wizDHCPUpdate, NULL);
-    DHCP_init(DHCP_SOCK, dhcpBuffer);
-    coloredMsg(LOG_RED, "wizI, DHCP initialized");
-
-    schAdd(wizDHCPHandler, NULL, 0, 1000);
+    schAdd(wizDHCPHandler, NULL, 0, 100);
     coloredMsg(LOG_RED, "wizI, DHCP handler scheduled");
 
     return 0;