I can't set kubectl on another pc to control a kubernetes cluster.

From the cluster I get the file /etc/kubernetes/admin.conf, on my local pc I use docker and start the dtzar/helm-kubectl image, next i copy the admin.conf file.

When I use the command inside the docker container

kubectl --kubeconfig /home/admin.conf cluster-info

I get a timeout error

Unable to connect to the server: dial tcp 10.41.1.100:6443: i/o timeout

from the docker image, i can ping and connect via ssh to the server! I don't know what to check, to fix it. Any help is welcome

PS: The cluster ip is in intranet.