title: Unable to login Openshift Cluster
body: <p>After the upgrading <code>kubectl</code>, I am unable to login on Openshift cluster.</p>
  <p>When i am trying to login with <code>oc login</code> command it is reverting the below error message:</p>
  <pre><code>Error: unknown command &quot;login&quot; for &quot;kubectl&quot;
  
   Did you mean this?
  
   logs
   plugin
  
   Run 'kubectl --help' for usage.
  </code></pre>
  <p>Below are the some details of version from machine where i have the login issue</p>
  <pre><code># kubectl version
  
   Client Version: version.Info{Major:&quot;1&quot;, Minor:&quot;18&quot;, GitVersion:&quot;v1.18.0&quot;, GitCommit:&quot;9e991415386e4cf155a24b1da15becaa390438d8&quot;, GitTreeState:&quot;clean&quot;, BuildDate:&quot;2020-03-25T14:58:59Z&quot;, GoVersion:&quot;go1.13.8&quot;, Compiler:&quot;gc&quot;, Platform:&quot;linux/amd64&quot;}
  
   error: You must be logged in to the server (the server has asked for the client to provide credentials)
  </code></pre>
  <p>Below are the some details of version from machine where i have no issue , i am able to login and didn't upgrade kubectl version</p>
  <pre><code># kubectl version
  
   Client Version: version.Info{Major:&quot;&quot;, Minor:&quot;&quot;, GitVersion:&quot;v0.0.0-master+$Format:%h$&quot;, GitCommit:&quot;$Format:%H$&quot;, GitTreeState:&quot;&quot;, BuildDate:&quot;1970-01-01T00:00:00Z&quot;, GoVersion:&quot;go1.12.12&quot;, Compiler:&quot;gc&quot;, Platform:&quot;linux/amd64&quot;}
  
   Server Version: version.Info{Major:&quot;1&quot;, Minor:&quot;16+&quot;, GitVersion:&quot;v1.16.2+f2384e2&quot;, GitCommit:&quot;f2384e2&quot;, GitTreeState:&quot;clean&quot;, BuildDate:&quot;2020-06-16T03:21:27Z&quot;, GoVersion:&quot;go1.12.12&quot;, Compiler:&quot;gc&quot;, Platform:&quot;linux/amd64&quot;}
  </code></pre>
  <p>Addition: I have checked by downgrade the <code>kubectl</code> versions , but getting same error on that machine where i unable to login using <code>oc login</code>.</p>