Don’t miss the Workfront AMA: System Smarts & Strategic Starts! Ask your questions about keeping Workfront running smoothly, planning enhancements, reporting, or adoption, and get practical insights from Adobe experts.
That sounds like your Jira Cloud instance may be doing some kind of IP filtering/allow-listing. I've just started a prototype of a Jira Cloud connection and I've been successful in making updates with only the information you were testing with so far.