diff --git a/Makefile.dep b/Makefile.dep
index 706e157af8aa1f9949819f9661386c73b25144a4..dee1f81c7ae280e0026646f14acdda2a490fd7f3 100644
--- a/Makefile.dep
+++ b/Makefile.dep
@@ -193,6 +193,7 @@ ifneq (,$(filter ng_nettest,$(USEMODULE)))
   USEMODULE += ng_netreg
   USEMODULE += ng_netif
   USEMODULE += ng_pktbuf
+  USEMODULE += vtimer
 endif
 
 ifneq (,$(filter ng_netbase,$(USEMODULE)))
diff --git a/sys/include/net/ng_nettest.h b/sys/include/net/ng_nettest.h
index 05f837066b5a8f4e404a200d2426bc5870c27592..4878845cc0a17bc12e803718a53fcd4e1e93a678 100644
--- a/sys/include/net/ng_nettest.h
+++ b/sys/include/net/ng_nettest.h
@@ -125,6 +125,8 @@ void ng_nettest_register_set(ng_netconf_opt_t opt, ng_nettest_opt_cb_t cb);
  * If no message was received after @ref NG_NETTEST_TIMEOUT microseconds, while
  * there are still packets expected, the function will return NG_NETTEST_TIMED_OUT.
  *
+ * In case of success it releases all packets send by the tested module.
+ *
  * @param[in] pid           The thread you want to test the
  *                          @ref NG_NETAPI_MSG_TYPE_SND command for.
  * @param[in] in            The packet you want to send through @p pid.
@@ -154,6 +156,8 @@ ng_nettest_res_t ng_nettest_send(kernel_pid_t pid, ng_pktsnip_t *in,
  * was received after @ref NG_NETTEST_TIMEOUT microseconds, while there are
  * still packets expected, the function will return NG_NETTEST_TIMED_OUT.
  *
+ * In case of success it releases all packets received from the tested module.
+ *
  * @param[in] pid           The thread you want to test the
  *                          @ref NG_NETAPI_MSG_TYPE_SND command for.
  * @param[in] in            The packet you want to send through @p pid.
diff --git a/sys/net/crosslayer/ng_nettest/ng_nettest.c b/sys/net/crosslayer/ng_nettest/ng_nettest.c
index 2fcf19fb6d3ede79a55f839adc1ec523cf07c4b3..9997c8b3f394030ecbb280b263381051401fb60d 100644
--- a/sys/net/crosslayer/ng_nettest/ng_nettest.c
+++ b/sys/net/crosslayer/ng_nettest/ng_nettest.c
@@ -61,38 +61,39 @@ static ng_nettest_res_t _pkt_test(uint16_t cmd_type, kernel_pid_t pid, ng_pktsni
     msg.content.ptr = (char *)in;
 
     msg_send(&msg, pid);
+    timex_normalize(&t);
 
     for (unsigned int i = 0; i < exp_pkts; i++) {
-        ng_pktsnip_t *out;
+        ng_pktsnip_t *out, *exp = exp_out[i];
 
-        if ((vtimer_msg_receive_timeout(&msg, t) < 0) && res == NG_NETTEST_SUCCESS) {
-            res = NG_NETTEST_TIMED_OUT;
+        if (vtimer_msg_receive_timeout(&msg, t) < 0) {
+            return NG_NETTEST_TIMED_OUT;
         }
 
-        if (msg.type != NG_NETAPI_MSG_TYPE_SND && (res == NG_NETTEST_SUCCESS)) {
-            res = NG_NETTEST_WRONG_MSG;
+        if (msg.type != cmd_type) {
+            return NG_NETTEST_WRONG_MSG;
         }
 
-        if (msg.sender_pid != exp_senders[i] && (res == NG_NETTEST_SUCCESS)) {
-            res = NG_NETTEST_WRONG_SENDER;
+        if (msg.sender_pid != exp_senders[i]) {
+            return NG_NETTEST_WRONG_SENDER;
         }
 
         out = (ng_pktsnip_t *)msg.content.ptr;
 
-        if ((out == NULL) && (res == NG_NETTEST_SUCCESS)) {
-            res = NG_NETTEST_FAIL;
+        if (out == NULL) {
+            return NG_NETTEST_FAIL;
         }
 
-        while (out) {
-            if ((res == NG_NETTEST_SUCCESS) &&
-                ((out->users != exp_out[i]->users) ||
-                 (out->size != exp_out[i]->size) ||
-                 (out->type != exp_out[i]->type) ||
-                 (memcmp(out->data, exp_out[i]->data, out->size) != 0))) {
-                res = NG_NETTEST_FAIL;
+        while (out && exp) {
+            if ((out->users != exp->users) ||
+                (out->size != exp->size) ||
+                (out->type != exp->type) ||
+                (memcmp(out->data, exp->data, out->size) != 0)) {
+                return NG_NETTEST_FAIL;
             }
 
             out = out->next;
+            exp = exp->next;
         }
 
         ng_pktbuf_release((ng_pktsnip_t *)msg.content.ptr);