Check-points if the Power BI Connector My Connector URLs page not loading

If the Power BI Connector My Connector URLs page not loading:

Symptoms:

If the requests are blocked at a url like below, one can observe this error by opening the browser's Developer tools and go to Network tab.
"https://jira-server/rest/aio-bi/1.0/oauth/checkstatus?callBackBaseUrl=https://jira-server/rest/aio-bi/1.0/oauth/authorize&redirect=https://jira-server/plugins/servlet/aio-bi/main/powerbi/aiopowerbiconnector"

Check-points:

1. Is Jira upgraded recently, if yes, is it running on the same port as before install?

2. If the Jira server is running on AWS or any other cloud hosted machine, is the Jira Server IP is whitelisted?

3. Open a Terminal/Command window and perform below check
   ping <jira-server-host-name>

   wget http(s)://<jira-server>
   wget http(s)://<jira-server>:<port>
   wget http(s)://localhost:<port>

4. Get value from the database
   select * from "AO_4BC27B_AIO_TENANT";

Possible solution:
Based on above checkpoints, might be required to update the DB column "AO_4BC27B_AIO_TENANT"."OAUTH_URL" to reflect proper value.