When I run Helm list or if I try deploy the Helm chart, the below error occurs.
[root@mcmpmaster01 ~]# helm list
Error: Get https://10.96.0.1:443/api/v1/namespaces/kube-system/configmaps?labelSelector=OWNER%!D(MISSING)TILLER: dial tcp 10.96.0.1:443: i/o timeoutThis Error in general comes when the configuration of your CNI (Container Network interface) Flannel or Calico .. is not well configured. I propose that you redeploy your network pod and you could also change the CIDR to be sure that the problem is not coming from that.
Make sure that you have declared your cluster VMs in the /etc/hosts.
Hope that this answer would help you out! Else could you give us more details about your cluster configuration ?