Having difficulty listening through ethernet

General Discussion Other

dabeej

Having difficulty listening through ethernet

in General Discussion • Other • 1 year ago

I am testing out the example here: http://arduino.cc/en/Tutorial/UDPSendReceiveString and have corrected the ports and IP addresses. When I run the Serial Monitor I can see that the Arduino is indeed hearing from Processing, and made it print a Serial message as to what it would send, which is correct.

The problem I have is that Processing fails to hear the message. If I change Processing to send the message instead to itself, it hears it just fine and all the other code works.

Does anyone know if there is a setting that I need to change in the code, or is this something router based? Literally the only things I have changed are the Ports and IPs, and then added those print commands to know what stage it would possibly fail at.

Thanks in advance.

Replies(2)

Jonny Stu..

Re: Having difficulty listening through ethernet

1 year ago

Do you have a firewall installed on your computer? If you do and it's running there's a good change that it will be blocking incoming packets from the Arduino, many firewalls are configured to allow all outbound traffic which would explain why the Arduino can receive packets from Processing without any problems. For testing you can try completely switching off the firewall, if that resolves the problem then you should look at how to selectively open the port that you need.

dabeej

Re: Having difficulty listening through ethernet

1 year ago

Hey Jonny, I just tried after turning off all firewalls from my control panel.... still no luck. Serial Monitor of the Arduino still shows that it receives the incoming data, but Processing still fails to see the response.

Any other thoughts?

Thanks in advance.

Top Reply

Statistics

2 Replies
486 Views
0 Followers

Actions

Permalink

Need Help with Video Streaming usin...