diff --git a/cube/User/Src/tcpTest.c b/cube/User/Src/tcpTest.c
index 92b301f..b8e1a1d 100644
--- a/cube/User/Src/tcpTest.c
+++ b/cube/User/Src/tcpTest.c
@@ -72,7 +72,17 @@ void tcpTestHandler(void *handle) {
             res32 = send(TCPTEST_SOCK, message, strlen(message));
             coloredMsg(LOG_YELLOW, "tth, sent a message, send returns 0x%02x", res32);
 
+            state = 4;
+            break;
+
+        case 4:
+            coloredMsg(LOG_YELLOW, "tth, now waiting for some input");
+            uint16_t s = getSn_RxMAX(TCPTEST_SOCK);
+            coloredMsg(LOG_YELLOW, "tth, getSn_RxMAX returns %d", s);
+
             state = 255;
+            break;
+
         case 255:
             coloredMsg(LOG_YELLOW, "tth, error state, will stop here");
             schDel(tcpTestHandler, NULL);