Connecting Confluence to JIRA user directory

[Jonathan Lauw]

I have an older JIRA 7.4 instance running on PostGreSQL.

I am having issues connecting my Confluence 6.1.3 to this JIRA server, keeps giving the error "Failed to create remote crowd client".  

What steps should I take to fix/troubleshoot?

[Jonathan Lauw]

I used an internal IP instead of the public IP and it was able to connect to complete the user dir.

My only concern is that the base URL is the public IP, not the internal one.  Will that pose any issues?

[Jonathan Lauw]

When I am trying to create the application link between Confluence to our Jira Directory I get different errors based on the IP i enter for the server url:

http://64.xx.xx.xx:8080

Connection test failed. Response from the server: com.atlassian.crowd.exception.ApplicationPermissionException: Forbidden (403) Encountered a "403 - Forbidden" error while loading this page. client.forbidden.exception Go to Jira home

64.xx.xx.xx:8080

Failed to create remote crowd client"

[Jonathan Lauw]

I was able to succesfully update my JIRA from 7.4 to 7.12.3

I am still getting the "Failed to create remote crowd client" when I go through the steps to add a JIRA directory to my Confluence installation.