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I am simply trying to send a simple HTTP request from an Arduino Uno with w5500 Ethernet Shield to a local server running on my PC.

The two are connected via a crossover ethernet cable and I am able to host a server on the Arduino that is accessible from my PC browser. Now I am trying to use the PC as a server and the Arduino as the client.

Using the simple WebClient example, I can send a successful GET request to google.com from the Arduino.

Here is what I am trying that is failing:

1 - Start a local server via running http-server in my command prompt. That successfully starts a server at 192.168.56.1:8080 that I can access via my browser

2 - Change the Web Client example to use 

IPAddress server(192,168,56,1);

and change the port to 

if (client.connect(server, 8080))

3 - Run this Arduino sketch. The connection fails and I don't know why. I have allowed port 8080 full input access through the Windows firewall.

Any ideas?

nmarie22
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1 Answers1

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The answer was simple. Instead of trying to connect to the IP address of the local server (192.168.56.1) I had to use the IP address of the ethernet connection between the Arduino and the PC (found using the ipconfig command on the command prompt).

nmarie22
  • 31
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