diff --git a/cores/validation/validation_shield_wifi/test.cpp b/cores/validation/validation_shield_wifi/test.cpp
index c143f5ad30f55bbd0f2b975e8028beac34c47652..ecfb8f2af5e251b280b40808b5e2acef4192c10f 100644
--- a/cores/validation/validation_shield_wifi/test.cpp
+++ b/cores/validation/validation_shield_wifi/test.cpp
@@ -30,6 +30,8 @@ void setup() {
   WiFi = WiFiClass();
   client = WiFiClient();
 
+  delay(500); // Waiting for initialization
+
 //  SPI.begin();
   //Initialize Serial5 and wait for port to open:
   Serial5.begin(9600);