diff --git a/dns_client.c b/dns_client.c
index 311a489..38b316e 100644
--- a/dns_client.c
+++ b/dns_client.c
@@ -495,8 +495,9 @@ static void *_dns_client_work(void *arg)
     int sleep_time;
     unsigned int expect_time = 0;
 
-    now = get_tick_count() - sleep;
-    expect_time = now + sleep;
+	sleep_time = sleep;
+	now = get_tick_count() - sleep;
+	expect_time = now + sleep;
     while (client.run) {
         now = get_tick_count();
         if (now >= expect_time) {
diff --git a/dns_server.c b/dns_server.c
index 0fb4627..722c0aa 100644
--- a/dns_server.c
+++ b/dns_server.c
@@ -414,7 +414,7 @@ static int _dns_server_process_answer(struct dns_request *request, char *domain,
 		if (request->rcode == DNS_RC_SERVFAIL) {
 			request->rcode = packet->head.rcode;
 		}
-		tlog(TLOG_ERROR, "inquery failed, %s, rcode = %d, id = %d\n", domain, packet->head.rcode, packet->head.id);
+		tlog(TLOG_DEBUG, "inquery failed, %s, rcode = %d, id = %d\n", domain, packet->head.rcode, packet->head.id);
 		return -1;
 	}
 
@@ -429,6 +429,12 @@ static int _dns_server_process_answer(struct dns_request *request, char *domain,
 				unsigned char addr[4];
 				_dns_server_request_get(request);
 				dns_get_A(rrs, name, DNS_MAX_CNAME_LEN, &ttl, addr);
+
+				if (addr[0] == 127) {
+					_dns_server_request_release(request);
+					break;
+				}
+
 				if (request->has_ipv4 == 0) {
 					memcpy(request->ipv4_addr, addr, DNS_RR_A_LEN);
 					request->has_ipv4 = 1;
@@ -709,6 +715,7 @@ int dns_server_run(void)
 	int sleep_time = 0;
 	unsigned long expect_time = 0;
 
+	sleep_time = sleep;
 	now = get_tick_count() - sleep;
 	expect_time = now + sleep;
 	while (server.run) {
diff --git a/fast_ping.c b/fast_ping.c
index b494ff2..3c0278f 100755
--- a/fast_ping.c
+++ b/fast_ping.c
@@ -302,7 +302,8 @@ static int _fast_ping_sendping_v6(struct ping_host_struct *ping_host)
 			goto errout;
 		}
 		char ping_host_name[PING_MAX_HOSTLEN];
-		tlog(TLOG_ERROR, "sendto %s %s", gethost_by_addr(ping_host_name, (struct sockaddr *)&ping_host->addr, ping_host->addr_len), strerror(errno));
+		tlog(TLOG_ERROR, "sendto %s, id %d, %s", gethost_by_addr(ping_host_name, (struct sockaddr *)&ping_host->addr, ping_host->addr_len), ping_host->sid,
+			 strerror(errno));
 		goto errout;
 	}
 
@@ -333,7 +334,12 @@ static int _fast_ping_sendping_v4(struct ping_host_struct *ping_host)
 
 	len = sendto(ping_host->fd, packet, sizeof(struct fast_ping_packet), 0, (struct sockaddr *)&ping_host->addr, ping_host->addr_len);
 	if (len < 0 || len != sizeof(struct fast_ping_packet)) {
-		tlog(TLOG_ERROR, "sendto %s\n", strerror(errno));
+		if (errno == ENETUNREACH) {
+			goto errout;
+		}
+		char ping_host_name[PING_MAX_HOSTLEN];
+		tlog(TLOG_ERROR, "sendto %s, id %d, %s", gethost_by_addr(ping_host_name, (struct sockaddr *)&ping_host->addr, ping_host->addr_len), ping_host->sid,
+			 strerror(errno));
 		goto errout;
 	}
 
@@ -528,6 +534,7 @@ struct ping_host_struct *fast_ping_start(const char *host, int count, int interv
 	}
 	memcpy(&ping_host->addr, gai->ai_addr, gai->ai_addrlen);
 
+	tlog(TLOG_DEBUG, "ping %s, id = %d", host, ping_host->sid);
 	if (_fast_ping_sendping(ping_host) != 0) {
 		goto errout1;
 	}
@@ -543,6 +550,7 @@ struct ping_host_struct *fast_ping_start(const char *host, int count, int interv
 
 	freeaddrinfo(gai);
 
+
 	return ping_host;
 errout:
 	if (fd > 0) {
@@ -582,7 +590,7 @@ static struct fast_ping_packet *_fast_ping_icmp6_packet(struct ping_host_struct
 	struct icmp6_hdr *icmp6 = &packet->icmp6;
 
 	if (icmp6->icmp6_type != ICMP6_ECHO_REPLY) {
-		tlog(TLOG_ERROR, "icmp6 type faild, %d:%d", icmp6->icmp6_type, ICMP6_ECHO_REPLY);
+		tlog(TLOG_DEBUG, "icmp6 type faild, %d:%d", icmp6->icmp6_type, ICMP6_ECHO_REPLY);
 		return NULL;
 	}
 
@@ -624,7 +632,7 @@ static struct fast_ping_packet *_fast_ping_icmp_packet(struct ping_host_struct *
 	}
 
 	if (icmp->icmp_type != ICMP_ECHOREPLY) {
-		tlog(TLOG_ERROR, "icmp type faild, %d:%d", icmp->icmp_type, ICMP_ECHOREPLY);
+		tlog(TLOG_DEBUG, "icmp type faild, %d:%d", icmp->icmp_type, ICMP_ECHOREPLY);
 		return NULL;
 	}
 
diff --git a/smartdns.conf b/smartdns.conf
index dbde6e0..2c2edb4 100644
--- a/smartdns.conf
+++ b/smartdns.conf
@@ -11,7 +11,7 @@ server 123.207.137.88
 server 119.29.29.29
 server 223.5.5.5
 server 208.67.222.222:5353
-server 202.141.178.13:5353
-server 77.88.8.8:53
-server 202.141.162.123:53
-server 101.132.183.99:53
\ No newline at end of file
+#server 202.141.178.13:5353
+#server 77.88.8.8:53
+#server 202.141.162.123:53
+#server 101.132.183.99:53
\ No newline at end of file