What is the problem?
So I wanted to setup Octoprint for my printer with a Raspberry Pi 3. When i connect it directly to my router it was perfectly working. But i have a long ethernet cable into my cellar, where my printer is. when I plug it in there I can't access the octopi.local website anymore. The green status LED on the ethernet port is on.
What did you already try to solve it?
I tried to connect a Laptop to the long ethernet cable. That worked perfectly.
I tried to reinstall octopi several times.
I was pinging it with the console in windows (didn't work)
Additional information about your network
I have a Raspberry Pi 3 Model B