I’ve a set-up with one master and one worker node (ec2-instances with RancherOS), my Rancher is running on its own node startet with docker run.
I’ve upgraded to 2.4.2 recently. Since then I’m experiencing randomly that my master node is going awol with this Error Message:
rancher Cluster health check failed: Failed to communicate with API server: https://xxx.xxx.xxx.xxx:6443/api/v1/namespaces/kube-system?timeout=30s: dial tcp i/o timeout
RancherOS is at Version 1.5.3
Kubernetes Version is 1.17.4-rancher1-3
After rebooting EC2 instance everything is working fine again for a while. But after some random time it will go unreachable again.
I hope this is enough information. Thanks in advance.