diff --git a/config.h b/config.h
index 2ca343bbe..9fddb52de 100644
--- a/config.h
+++ b/config.h
@@ -25,7 +25,7 @@
 #define DEFAULT_QUEUELEN	1024
 
 /** Whether or not to send / receive timestamp & sequence number as first values of payload */
-#define GTNET_SKT_HEADER	1
+#define GTNET_SKT_HEADER	0
 
 /** Width of log output in characters */
 #define LOG_WIDTH		132
diff --git a/etc/gtnet_test4.conf b/etc/gtnet_test4.conf
index b80cbd41d..4a56ee34d 100644
--- a/etc/gtnet_test4.conf
+++ b/etc/gtnet_test4.conf
@@ -32,8 +32,8 @@ nodes = {
 	node1 = {
 		type = "socket",
 		layer = "udp",
-		local = "192.168.88.128:12002",			# Local ip:port, use '*' for random port
-		remote = "192.168.88.129:12001",
+		local = "134.130.169.31:12002",			# Local ip:port, use '*' for random port
+		remote = "134.130.169.98:12001",
 		header = "gtnet-skt",			# 'gtnet-skt' or 'villas'. If not provided, 'villas' header will be used
 		vectorize = 1,				# Number of samples to fetch per iteration from the socket
 		netem = {
diff --git a/include/villas/hooks.h b/include/villas/hooks.h
index 67356df87..ad3fe07c0 100644
--- a/include/villas/hooks.h
+++ b/include/villas/hooks.h
@@ -22,6 +22,7 @@
 #define _HOOKS_H_
 
 #include <time.h>
+#include <string.h>
 
 #include "queue.h"
 #include "list.h"
diff --git a/lib/hooks/hooks-internal.c b/lib/hooks/hooks-internal.c
index 26958703c..f260e0a73 100644
--- a/lib/hooks/hooks-internal.c
+++ b/lib/hooks/hooks-internal.c
@@ -67,6 +67,10 @@ int hook_drop(struct path *p, struct hook *h, int when, struct sample *smps[], s
 {
 	int i, ok, dist;
 
+	/** Don't check the sequence number order in case of gtnet-skt without header */
+	if(!strcmp(p->in->_vt->name, "socket") && !GTNET_SKT_HEADER)
+		return cnt;
+
 	for (i = 0, ok = 0; i < cnt; i++) {
 		h->last = smps[i];