This is a issue with the truststore between the instances. You'll need to import the certificates for JIRA and Confluence into the truststore, as instructed on the following article: https://confluence.atlassian.com/display/KB/Unable+to+Connect+to+SSL+Services+due+to+PKIX+Path+Building+Failed
Atlassian Summit is an excellent opportunity for in-person support, training, and networking.Learn more
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG