diff --git a/NetworkSync.cpp b/NetworkSync.cpp
index 1c35879..abd2014 100644
--- a/NetworkSync.cpp
+++ b/NetworkSync.cpp
@@ -28,8 +28,9 @@ void NetworkSync::ReceiveMessage(Roboid *roboid, unsigned char bytecount) {
 void NetworkSync::ReceiveNetworkId() {
   this->networkId = buffer[1];
 #ifdef RC_DEBUG
-  printf("Received network Id %d\n", this->networkId);
+  printf("_Received network Id %d\n", this->networkId);
 #endif
+  PublishModel(roboid);
 }
 
 void NetworkSync::NewObject(InterestingThing *thing) {
@@ -50,6 +51,9 @@ void NetworkSync::NewObject(InterestingThing *thing) {
 }
 
 void NetworkSync::PublishModel(Roboid *roboid) {
+  if (roboid->modelUrl == nullptr)
+    return;
+
   int len = strlen(roboid->modelUrl);
   if (len > 255)
     return;