Traefik on Kubernetes results in i/o timeout

I try to install traefik v1.17 as a Kubernetes Ingress Controller as explained in the official userguide.

I am running a kubernetes cluster v1.17.1 on Debian 10 (running on internet nodes) . I have one master node and one worker node.

Following exactly the guideline results always in messages like this in the traefik container:

E0119 16:21:48.559968       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1beta1.Ingress: Get https://10.18.0.1:443/apis/extensions/v1beta1/ingresses?limit=500&resourceVersion=0: dial tcp 10.18.0.1:443: i/o timeout  
E0119 16:21:48.559973       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Endpoints: Get https://10.18.0.1:443/api/v1/endpoints?limit=500&resourceVersion=0: dial tcp 10.18.0.1:443: i/o timeout     
E0119 16:21:48.561402       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Service: Get https://10.18.0.1:443/api/v1/services?limit=500&resourceVersion=0: dial tcp 10.18.0.1:443: i/o timeout

I can't figure out why this error occurs. As a result all tries to publish the traefik dashboard to my public internet address failed. Only in case I use the traefik-deployment.yaml file instead of a daemonset I am able to access the dashboard via the internal port number from my worker node directly.

Can anybody explain what the error messages means and what may cause this error. I followed multiple blogs and re-installed the complete cluster several times.

Thanks for any hints

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Ralph