Raspberry cluster Problem: Status down

Hi all,

I’m new with Docker. I have a problem that I didn’t understand how can I solve. After he first installation of docker on my raspberry cluster, I have one swarm that have the status down. When this happen, I can’t acces to raspberry also with Putty too.
How can I solve this problem?
which is the correct procedure to power off a raspberry cluster with docker?

Thank you for your help :wink:

no one have some tips to help me solve this problem? thank you

Is the problem too easy to solve or I did something wrong?