diff --git a/cube/User/Src/mbusComm.c b/cube/User/Src/mbusComm.c
index 8e7bf54..9fd8fda 100644
--- a/cube/User/Src/mbusComm.c
+++ b/cube/User/Src/mbusComm.c
@@ -30,6 +30,7 @@ typedef enum {
     MBCS_CHKSUM,
     MBCS_STOP,
     MBCS_DONE,
+    MBCS_TIMEOUT,
     MBCS_DISABLE_FRONTEND,
     MBCS_ERROR
 } e_mbusCommState;
@@ -63,7 +64,7 @@ static void handleRequestEngine(void *handle);
 static void timeoutHandler(void *handle) {
     logMsg("mbc timeout");
     t_mbusCommHandle *localMbusCommHandle = (t_mbusCommHandle*) handle;
-    localMbusCommHandle->state = MBCS_DISABLE_FRONTEND;
+    localMbusCommHandle->state = MBCS_TIMEOUT;
     localMbusCommHandle->receiving = false;
     handleRequestEngine(handle);
 }
@@ -253,6 +254,7 @@ static void handleRequestEngine(void *handle) {
         printFrame(&(localMbusCommHandle->frame));
         localMbusCommHandle->result = MBCR_SUCCESS;
         localMbusCommHandle->state = MBCS_DISABLE_FRONTEND;
+        schDel(timeoutHandler, handle);
         schAdd(handleRequestEngine, handle, 0, 0);
         break;
 
@@ -263,15 +265,18 @@ static void handleRequestEngine(void *handle) {
         receiveNext(localMbusCommHandle);
         break;
 
-
-        case MBCS_DISABLE_FRONTEND:
-        logMsg("hre state DISABLE_FRONTEND");
+        case MBCS_TIMEOUT:
+        logMsg("hre state TIMEOUT");
         localMbusCommHandle->receiving = false;        
         HAL_UART_AbortReceive(&mbusUart);
         uint8_t kitchenSink[16];
         memset(kitchenSink, 0, 16);
-        HAL_StatusTypeDef r = HAL_UART_Receive(&mbusUart, kitchenSink, 16, 1000);
+        HAL_StatusTypeDef r = HAL_UART_Receive(&mbusUart, kitchenSink, 16, 100);
         logMsg("hre abort, last receive result: %02x", r);
+        // no break
+
+        case MBCS_DISABLE_FRONTEND:
+        logMsg("hre state DISABLE_FRONTEND");
         frontendDisable();
         localMbusCommHandle->state = MBCS_IDLE;
         break;