SAP PMD : Unable to connect
Connected with The user. Performed Troubleshooting and solved the issue. 
This is Excel Add-on called SAP IBP and connection URL was set to medtech.jnj.com but it was failing to authenticate. 
despite of changing the URL, it was reverting to original. The DEFAULT connection was unchecked and URL was changed to saml2=disabled to solve the issue. 
 
URL used now in the SAP IBP Application is  https://medtech.jnj.com?saml2=disabled