You are going to have to tell us more than that.
What exactly is the error message, what are you trying to connect with, have you checked Jira is running on the machine you are connecting from (it's not remote, as you said localhost), what do the logs say?
You will want to check the Catalina.out and atlassian-jira.log to see what errors are being thrown and go from there. Verify the following:
Let us know what you find.
Badges are a great way to show off community activity, whether you’re a newbie or a Champion.Learn more
Hi Atlassian Community! My name is Shana, and I’m on the Jira Software team. One of the many reasons this Community exists is to connect you to others on similar product journeys or with comparabl...
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
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs