diff --git a/api/service/networkinfo/service.go b/api/service/networkinfo/service.go
index 7145399a5..5fd6e8caa 100644
--- a/api/service/networkinfo/service.go
+++ b/api/service/networkinfo/service.go
@@ -48,6 +48,9 @@ const (
 
 	// register to bootnode every ticker
 	dhtTicker = 6 * time.Hour
+
+	// wait for peerinfo.
+	peerInfoWait = time.Second
 )
 
 // New returns role conversion service.
@@ -161,38 +164,46 @@ func (s *Service) DoService() {
 		return
 	}
 	tick := time.NewTicker(dhtTicker)
+	peerInfoTick := time.NewTicker(peerInfoWait)
 	for {
 		select {
-		case peer := <-s.peerInfo:
-			if peer.ID != s.Host.GetP2PHost().ID() && len(peer.ID) > 0 {
-				//	utils.GetLogInstance().Info("Found Peer", "peer", peer.ID, "addr", peer.Addrs, "my ID", s.Host.GetP2PHost().ID())
-				if err := s.Host.GetP2PHost().Connect(ctx, peer); err != nil {
-					utils.GetLogInstance().Warn("can't connect to peer node", "error", err, "peer", peer)
-					// break if the node can't connect to peers, waiting for another peer
-					break
-				} else {
-					utils.GetLogInstance().Info("connected to peer node", "peer", peer)
-				}
-				// figure out the public ip/port
-				var ip, port string
-
-				for _, addr := range peer.Addrs {
-					netaddr, err := manet.ToNetAddr(addr)
-					if err != nil {
-						continue
-					}
-					nip := netaddr.(*net.TCPAddr).IP
-					if (nip.IsGlobalUnicast() && !utils.IsPrivateIP(nip)) || cgnPrefix.Contains(nip) {
-						ip = nip.String()
-						port = fmt.Sprintf("%d", netaddr.(*net.TCPAddr).Port)
+		case <-peerInfoTick.C:
+			select {
+			case peer := <-s.peerInfo:
+				if peer.ID != s.Host.GetP2PHost().ID() && len(peer.ID) > 0 {
+					//	utils.GetLogInstance().Info("Found Peer", "peer", peer.ID, "addr", peer.Addrs, "my ID", s.Host.GetP2PHost().ID())
+					if err := s.Host.GetP2PHost().Connect(ctx, peer); err != nil {
+						utils.GetLogInstance().Warn("can't connect to peer node", "error", err, "peer", peer)
+						// break if the node can't connect to peers, waiting for another peer
 						break
+					} else {
+						utils.GetLogInstance().Info("connected to peer node", "peer", peer)
+					}
+					// figure out the public ip/port
+					var ip, port string
+
+					for _, addr := range peer.Addrs {
+						netaddr, err := manet.ToNetAddr(addr)
+						if err != nil {
+							continue
+						}
+						nip := netaddr.(*net.TCPAddr).IP
+						if (nip.IsGlobalUnicast() && !utils.IsPrivateIP(nip)) || cgnPrefix.Contains(nip) {
+							ip = nip.String()
+							port = fmt.Sprintf("%d", netaddr.(*net.TCPAddr).Port)
+							break
+						}
+					}
+					if ip != "" {
+						p := p2p.Peer{IP: ip, Port: port, PeerID: peer.ID, Addrs: peer.Addrs}
+						utils.GetLogInstance().Info("Notify peerChan", "peer", p)
+						if s.peerChan != nil {
+							s.peerChan <- p
+						}
 					}
 				}
-				p := p2p.Peer{IP: ip, Port: port, PeerID: peer.ID, Addrs: peer.Addrs}
-				utils.GetLogInstance().Info("Notify peerChan", "peer", p)
-				if s.peerChan != nil {
-					s.peerChan <- p
-				}
+			default:
+				utils.GetLogInstance().Info("Got no peer from peerInfo")
 			}
 		case <-s.stopChan:
 			return