diff --git a/src/Program.cpp b/src/Program.cpp
index 840665f..d9bd918 100644
--- a/src/Program.cpp
+++ b/src/Program.cpp
@@ -100,6 +100,11 @@ void Program::loop() {
     String nfcId = this->nfcReader->ReadNfc();
     //si qqc
     if(nfcId != "0"){
+        if (lcdScreen->get_components().wifi != COMPONENT_OK) {
+            lcdScreen->add_log("Wifi not connected !");
+            lcdScreen->set_nfc_message("Cannot send wifi request !");
+            return;
+        }
         //j'arrète le stepper
         //this->grbl->stop(); //FIXME: implemente
         //j'affiche le tag lue