Arduino ethernet shield w5100 connect failed

아두이노와 이더넷 쉴드 w5100을 Cayenne을 이용하여 연결을 하려고 합니다.

스케치의 내용을 복사하여 붙여넣기 해서 업로드 해도 똑같구요.

이게 스케치의 내용입니다.

스케치의 내용을 업로드하면 이런 현상이 나타납니다.

부탁드립니다. 여기서 계속 안됩니다. 부탁드리겠습니다.!

Hi @seayoung132,

Do you get any errors when uploading the sketch to the Arduino?
Have you tested that your router is able to connect to the internet via Ethernet? In other words, try connecting a Laptop to the same Ethernet cable that the Arduino is plugged into & see if there’s any internet connection issues.

And just to confirm, can you clarify how you have everything plugged in? Do you have the Arduino connected to a Router?


Good morning

There were no errors when uploading Arduino

The Ethernet cable is connected to the laptop and the Internet is currently using the company Wi-Fi.

Is this a problem?

Hi @seayoung132,
It looks like you have things plugged in incorrectly.
You must plug in the ethernet cable to an Internet Router. You cannot plug it into a laptop.

Please try plugging in the Ethernet to your router & see if it works.


Hello, I did not work because I connected the ethernet cable to the router.

I used this video to operate the Ethernet shield. Do you know anything other than this video?