A bunch of tests started failing around noon

[mikedanese]

13:11:41 2016/02/11 13:11:41 e2e.go:303: Running: 'kubectl version --match-server-version=false'
13:11:41 Client Version: version.Info{Major:"1", Minor:"2+", GitVersion:"v1.2.0-alpha.7.675+1c6a223eaae2b0", GitCommit:"1c6a223eaae2b0135b864c4cd0fc6c044461d27f", GitTreeState:"clean"}
13:11:57 The connection to the server 104.197.209.233 was refused - did you specify the right host or port?

[mikedanese]

http://kubekins.dls.corp.google.com/job/kubernetes-e2e-gke-slow/
http://kubekins.dls.corp.google.com/job/kubernetes-e2e-gke/
http://kubekins.dls.corp.google.com/job/kubernetes-e2e-gce/

And a few others had a blip. cc @ixdy

[mikedanese]

Seems to have recovered. Maybe related to #20916