"<projectname> is offline"

I’m having an issue where the Blynk App (iOS) says that {{projectname}} is offline. Details are below on my devices and setup.

Any help here would be greatly appreciated. I’m very green on networking and web servers.

-running local server (0.41.8) on a Raspberry Pi
-running Blynk App on iOS
-running LED connected to digital pin 2 on Arduino Uno, with Ethernet Shield attached.
-Blynk library is v0.6.1

–Raspberry Pi is connected to home router via WIRED
–iPhone is running WIRELESS on home router
–Uno w/ ethernet shield is connected to home router via WIRED

—local server is running and can be pinged by other devices on home router
—Blynk app is running and has created a user account on the web server
—I have made a new project (name: “secondLED”) on the App. “Button” --> “D2” {0-1} --> “Push”
—When I go to run the project, a message at the top of the screen (just under the main green bar) shows “secondLED is offline”
—I have placed my code, but without the authorization token.

#define BLYNK_PRINT Serial

#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "";  //"YourAuthToken";

#define W5100_CS  10
#define SDCARD_CS 4

void setup()
  // Debug console

  digitalWrite(SDCARD_CS, HIGH); // Deselect the SD card

  //Blynk.begin(auth); //originally uncommented
  // You can also specify server:
  //Blynk.begin(auth, "blynk-cloud.com", 80);
  //Blynk.begin(auth, IPAddress(192,168,1,100), 8080);
  Blynk.begin(auth, IPAddress(192,168,1,26),9443);  //added by GMC 20190803
  // For more options, see Boards_Ethernet/Arduino_Ethernet_Manual example

void loop()

What happens if you try port 8080 instead of 9443 ?

As you’re using an Ethernet shield you may also need to specify MAC address, IP address, gateway, DNS server etc.