diff --git a/src/libs/zbxcomms/comms.c b/src/libs/zbxcomms/comms.c
index ec35b776b0..17eba160d7 100644
--- a/src/libs/zbxcomms/comms.c
+++ b/src/libs/zbxcomms/comms.c
@@ -530,9 +530,9 @@ static int	zbx_socket_create(zbx_socket_t *s, int type, const char *source_ip, c
 	struct addrinfo	*ai_bind = NULL;
 	char		service[8], *error = NULL;
 	void		(*func_socket_close)(zbx_socket_t *s);
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "zbx_socket_create 1");
 	zbx_socket_clean(s);
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "zbx_socket_create 2");
 	if (SOCK_DGRAM == type && (ZBX_TCP_SEC_TLS_CERT == tls_connect || ZBX_TCP_SEC_TLS_PSK == tls_connect))
 	{
 		THIS_SHOULD_NEVER_HAPPEN;
@@ -551,18 +551,19 @@ static int	zbx_socket_create(zbx_socket_t *s, int type, const char *source_ip, c
 		return FAIL;
 	}
 #endif
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "zbx_socket_create 3");
 	zbx_snprintf(service, sizeof(service), "%hu", port);
 	memset(&hints, 0x00, sizeof(struct addrinfo));
 	hints.ai_family = PF_UNSPEC;
 	hints.ai_socktype = type;
 
+	zabbix_log(LOG_LEVEL_INFORMATION, "zbx_socket_create 4");
 	if (0 != getaddrinfo(ip, service, &hints, &ai))
 	{
 		zbx_set_socket_strerror("cannot resolve [%s]", ip);
 		goto out;
 	}
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "zbx_socket_create 5");
 	if (ZBX_SOCKET_ERROR == (s->socket = socket(ai->ai_family, ai->ai_socktype | SOCK_CLOEXEC, ai->ai_protocol)))
 	{
 		zbx_set_socket_strerror("cannot create socket [[%s]:%hu]: %s",
@@ -639,7 +640,7 @@ static int	zbx_socket_create(zbx_socket_t *s, int type, const char *source_ip, c
 	struct hostent	*hp;
 	char		*error = NULL;
 	void		(*func_socket_close)(zbx_socket_t *s);
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "zbx_socket_create ipv4 1");
 	if (SOCK_DGRAM == type && (ZBX_TCP_SEC_TLS_CERT == tls_connect || ZBX_TCP_SEC_TLS_PSK == tls_connect))
 	{
 		THIS_SHOULD_NEVER_HAPPEN;
@@ -710,7 +711,7 @@ static int	zbx_socket_create(zbx_socket_t *s, int type, const char *source_ip, c
 			return FAIL;
 		}
 	}
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "zbx_socket_create ipv4 5");
 	if (SUCCEED != zbx_socket_connect(s, (struct sockaddr *)&servaddr_in, sizeof(servaddr_in), timeout, &error))
 	{
 		func_socket_close(s);
@@ -733,7 +734,7 @@ static int	zbx_socket_create(zbx_socket_t *s, int type, const char *source_ip, c
 	ZBX_UNUSED(tls_arg2);
 #endif
 	zbx_strlcpy(s->peer, ip, sizeof(s->peer));
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "zbx_socket_create ipv4 6");
 	return SUCCEED;
 }
 #endif	/* HAVE_IPV6 */
diff --git a/src/libs/zbxsysinfo/sysinfo.c b/src/libs/zbxsysinfo/sysinfo.c
index fb9e9b31cc..55750178c9 100644
--- a/src/libs/zbxsysinfo/sysinfo.c
+++ b/src/libs/zbxsysinfo/sysinfo.c
@@ -870,7 +870,7 @@ static void	add_request_param(AGENT_REQUEST *request, char *pvalue, zbx_request_
 int	parse_item_key(const char *itemkey, AGENT_REQUEST *request)
 {
 	int	i, ret = FAIL;
-	char	*key = NULL, *params = NULL;
+	char	*key = NULL, *params = NULL;	
 
 	switch (parse_command_dyn(itemkey, &key, &params))
 	{
diff --git a/src/zabbix_agent/active.c b/src/zabbix_agent/active.c
index 1f4e1e3303..764121b014 100644
--- a/src/zabbix_agent/active.c
+++ b/src/zabbix_agent/active.c
@@ -585,13 +585,14 @@ static int	refresh_active_checks(const char *host, unsigned short port)
 	zbx_socket_t			s;
 	struct zbx_json			json;
 
-	zabbix_log(LOG_LEVEL_DEBUG, "In %s() host:'%s' port:%hu", __func__, host, port);
+	zabbix_log(LOG_LEVEL_INFORMATION, "In %s() host:'%s' port:%hu", __func__, host, port);
 
 	zbx_json_init(&json, ZBX_JSON_STAT_BUF_LEN);
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "1");
 	zbx_json_addstring(&json, ZBX_PROTO_TAG_REQUEST, ZBX_PROTO_VALUE_GET_ACTIVE_CHECKS, ZBX_JSON_TYPE_STRING);
+	zabbix_log(LOG_LEVEL_INFORMATION, "2");
 	zbx_json_addstring(&json, ZBX_PROTO_TAG_HOST, CONFIG_HOSTNAME, ZBX_JSON_TYPE_STRING);
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "3");
 	if (NULL != CONFIG_HOST_METADATA)
 	{
 		zbx_json_addstring(&json, ZBX_PROTO_TAG_HOST_METADATA, CONFIG_HOST_METADATA, ZBX_JSON_TYPE_STRING);
@@ -600,7 +601,7 @@ static int	refresh_active_checks(const char *host, unsigned short port)
 	{
 		process_config_item(&json, CONFIG_HOST_METADATA_ITEM, HOST_METADATA_LEN, ZBX_PROTO_TAG_HOST_METADATA);
 	}
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "4");
 	if (NULL != CONFIG_HOST_INTERFACE)
 	{
 		zbx_json_addstring(&json, ZBX_PROTO_TAG_INTERFACE, CONFIG_HOST_INTERFACE, ZBX_JSON_TYPE_STRING);
@@ -609,7 +610,7 @@ static int	refresh_active_checks(const char *host, unsigned short port)
 	{
 		process_config_item(&json, CONFIG_HOST_INTERFACE_ITEM, HOST_INTERFACE_LEN, ZBX_PROTO_TAG_INTERFACE);
 	}
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "5");
 	if (NULL != CONFIG_LISTEN_IP)
 	{
 		char	*p;
@@ -622,7 +623,7 @@ static int	refresh_active_checks(const char *host, unsigned short port)
 		if (NULL != p)
 			*p = ',';
 	}
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "6");
 	if (ZBX_DEFAULT_AGENT_PORT != CONFIG_LISTEN_PORT)
 		zbx_json_adduint64(&json, ZBX_PROTO_TAG_PORT, CONFIG_LISTEN_PORT);
 
@@ -647,7 +648,7 @@ static int	refresh_active_checks(const char *host, unsigned short port)
 			ret = FAIL;
 			goto out;
 	}
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "7");
 	if (SUCCEED == (ret = zbx_tcp_connect(&s, CONFIG_SOURCE_IP, host, port, CONFIG_TIMEOUT,
 			configured_tls_connect_mode, tls_arg1, tls_arg2)))
 	{
@@ -669,10 +670,10 @@ static int	refresh_active_checks(const char *host, unsigned short port)
 				parse_list_of_checks(s.buffer, host, port);
 			}
 		}
-
 		zbx_tcp_close(&s);
 	}
 out:
+	zabbix_log(LOG_LEVEL_INFORMATION, "8");
 	if (SUCCEED != ret && SUCCEED == last_ret)
 	{
 		zabbix_log(LOG_LEVEL_WARNING,
@@ -683,7 +684,7 @@ out:
 	last_ret = ret;
 
 	zbx_json_free(&json);
-
+	zabbix_log(LOG_LEVEL_INFORMATION, "9");
 	zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __func__, zbx_result_string(ret));
 
 	return ret;