(Problem accessing /solr/admin/collections. Reason: <pre> Authentication required)Solr Ranger integration Cloudera 7

[#1]

Hi,

I'm using cloudera data platform 7.0.3. Getting below error while test connection from ranger solr plugin. 

Problem accessing /solr/admin/collections. Reason:
<pre> Authentication required<pre>

Please help me out

Thanks in advance!

[#2]

When ranger_audits  collection got created in solr, solr plugin test connection in ranger UI is throwing the error Authentication Required.